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Numberphile

@numberphile · 4.8M subscribers

Numberphile’s most viewed videos of all time

Lifetime totals, not views in this range.

Snapshot from 19 Oct 2026.

  1. Rank 1:
    The Scientific Way to Cut a Cake - Numberphile

    The Scientific Way to Cut a Cake - Numberphile

    17.3M views17 Jun 20145:09(opens in a new tab)

  2. Rank 2:
    6174 - Numberphile

    6174 - Numberphile

    12.9M views5 Dec 20113:42(opens in a new tab)

  3. Rank 3:
    The Elliptical Pool Table - Numberphile

    The Elliptical Pool Table - Numberphile

    11M views16 Jul 20153:40(opens in a new tab)

  4. Rank 4:
    ASTOUNDING: 1 + 2 + 3 + 4 + 5 + ... = -1/12

    ASTOUNDING: 1 + 2 + 3 + 4 + 5 + ... = -1/12

    9.8M views9 Jan 20147:50(opens in a new tab)

  5. Rank 5:
    The World's Best Mathematician (*) - Terence Tao on Numberphile

    The World's Best Mathematician (*) - Terence Tao on Numberphile

    7.8M views14 Mar 201710:57(opens in a new tab)

  6. Rank 6:
    Infinity is bigger than you think - Numberphile

    Infinity is bigger than you think - Numberphile

    7.7M views6 Jul 20128:00(opens in a new tab)

  7. Rank 7:
    What is a lucky number? - Numberphile

    What is a lucky number? - Numberphile

    7.3M views15 May 20122:50(opens in a new tab)

  8. Rank 8:
    The Josephus Problem - Numberphile

    The Josephus Problem - Numberphile

    7M views28 Oct 201613:58(opens in a new tab)

  9. Rank 9:
    158,962,555,217,826,360,000 (Enigma Machine) - Numberphile

    158,962,555,217,826,360,000 (Enigma Machine) - Numberphile

    6.7M views10 Jan 201311:52(opens in a new tab)

  10. Rank 10:
    The problem in Good Will Hunting - Numberphile

    The problem in Good Will Hunting - Numberphile

    6.5M views4 Mar 20134:54(opens in a new tab)

  11. Rank 11:
    A Sudoku Secret to Blow Your Mind - Numberphile

    A Sudoku Secret to Blow Your Mind - Numberphile

    6.2M views4 Jan 20246:08(opens in a new tab)

  12. Rank 12:
    Riemann Hypothesis - Numberphile

    Riemann Hypothesis - Numberphile

    6M views11 Mar 201417:03(opens in a new tab)

  13. Rank 13:
    Problems with Zero - Numberphile

    Problems with Zero - Numberphile

    5.9M views25 Oct 201213:00(opens in a new tab)

  14. Rank 14:
    Perfect Shapes in Higher Dimensions - Numberphile

    Perfect Shapes in Higher Dimensions - Numberphile

    5.4M views23 Mar 201626:19(opens in a new tab)

  15. Rank 15:
    Flaw in the Enigma Code - Numberphile

    Flaw in the Enigma Code - Numberphile

    5.4M views14 Jan 201310:58(opens in a new tab)

  16. Rank 16:
    8128 and Perfect Numbers - Numberphile

    8128 and Perfect Numbers - Numberphile

    5.1M views28 Nov 20114:20(opens in a new tab)

  17. Rank 17:
    e (Euler's Number) - Numberphile

    e (Euler's Number) - Numberphile

    5.1M views19 Dec 201610:42(opens in a new tab)

  18. Rank 18:
    British Numbers confuse Americans - Numberphile

    British Numbers confuse Americans - Numberphile

    5.1M views25 Jul 201314:29(opens in a new tab)

  19. Rank 19:
    Monty Hall Problem - Numberphile

    Monty Hall Problem - Numberphile

    4.9M views22 May 20145:30(opens in a new tab)

  20. Rank 20:
    Number Trick - Numberphile

    Number Trick - Numberphile

    4.9M views2 Jun 20133:29(opens in a new tab)

  21. Rank 21:
    One minus one plus one minus one - Numberphile

    One minus one plus one minus one - Numberphile

    4.8M views25 Jun 201311:10(opens in a new tab)

  22. Rank 22:
    Winning at Rock Paper Scissors - Numberphile

    Winning at Rock Paper Scissors - Numberphile

    4.8M views26 Jan 20155:48(opens in a new tab)

  23. Rank 23:
    The Opposite of Infinity - Numberphile

    The Opposite of Infinity - Numberphile

    4.7M views8 Sept 201515:05(opens in a new tab)

  24. Rank 24:
    Zero Factorial - Numberphile

    Zero Factorial - Numberphile

    4.6M views8 Jun 20137:36(opens in a new tab)

  25. Rank 25:
    666 - Numberphile

    666 - Numberphile

    4.3M views12 Apr 201211:06(opens in a new tab)

  26. Rank 26:
    13,983,816 and the Lottery - Numberphile

    13,983,816 and the Lottery - Numberphile

    4.2M views28 Mar 20127:46(opens in a new tab)

  27. Rank 27:
    Did Usain Bolt REALLY run 100m in 9.63 seconds?

    Did Usain Bolt REALLY run 100m in 9.63 seconds?

    4M views6 Aug 20127:29(opens in a new tab)

  28. Rank 28:
    Googol and Googolplex - Numberphile

    Googol and Googolplex - Numberphile

    4M views17 Feb 20127:01(opens in a new tab)

  29. Rank 29:
    Log Tables - Numberphile

    Log Tables - Numberphile

    3.9M views5 Sept 20135:10(opens in a new tab)

  30. Rank 30:
    Root 2 - Numberphile

    Root 2 - Numberphile

    3.9M views27 Jan 20128:49(opens in a new tab)

  31. Rank 31:
    The Golden Ratio (why it is so irrational) - Numberphile

    The Golden Ratio (why it is so irrational) - Numberphile

    3.9M views8 May 201815:13(opens in a new tab)

  32. Rank 32:
    The Legend of Question Six - Numberphile

    The Legend of Question Six - Numberphile

    3.9M views16 Aug 20168:45(opens in a new tab)

  33. Rank 33:
    Three Gears are Possible - Numberphile

    Three Gears are Possible - Numberphile

    3.9M views10 Jun 20164:51(opens in a new tab)

  34. Rank 34:
    Billionaire Mathematician - Numberphile

    Billionaire Mathematician - Numberphile

    3.7M views13 May 201518:39(opens in a new tab)

  35. Rank 35:
    Zeno's Paradox - Numberphile

    Zeno's Paradox - Numberphile

    3.5M views7 Apr 201312:05(opens in a new tab)

  36. Rank 36:
    How Pi was nearly changed to 3.2 - Numberphile

    How Pi was nearly changed to 3.2 - Numberphile

    3.4M views12 Mar 20134:56(opens in a new tab)

  37. Rank 37:
    Illegal Numbers - Numberphile

    Illegal Numbers - Numberphile

    3.3M views13 May 20135:59(opens in a new tab)

  38. Rank 38:
    Is Zero Even? - Numberphile

    Is Zero Even? - Numberphile

    3.3M views2 Dec 20126:44(opens in a new tab)

  39. Rank 39:
    The Illumination Problem - Numberphile

    The Illumination Problem - Numberphile

    3.3M views28 Feb 20179:09(opens in a new tab)

  40. Rank 40:
    Professors React to 2048 - Numberphile

    Professors React to 2048 - Numberphile

    3.2M views1 May 20145:50(opens in a new tab)

  41. Rank 41:
    The 10,958 Problem - Numberphile

    The 10,958 Problem - Numberphile

    3.2M views18 Apr 20178:24(opens in a new tab)

  42. Rank 42:
    How many chess games are possible? - Numberphile

    How many chess games are possible? - Numberphile

    3.1M views24 Jul 201512:11(opens in a new tab)

  43. Rank 43:
    998,001 and its Mysterious Recurring Decimals - Numberphile

    998,001 and its Mysterious Recurring Decimals - Numberphile

    3.1M views6 Mar 20129:47(opens in a new tab)

  44. Rank 44:
    Graham's Number - Numberphile

    Graham's Number - Numberphile

    3M views4 Apr 20129:16(opens in a new tab)

  45. Rank 45:
    How to order 43 Chicken McNuggets (Frobenius numbers) - Numberphile

    How to order 43 Chicken McNuggets (Frobenius numbers) - Numberphile

    3M views9 Oct 20125:43(opens in a new tab)

  46. Rank 46:
    Poincaré Conjecture - Numberphile

    Poincaré Conjecture - Numberphile

    2.9M views23 Apr 20148:52(opens in a new tab)

  47. Rank 47:
    3 is everywhere - Numberphile

    3 is everywhere - Numberphile

    2.9M views1 Apr 20126:33(opens in a new tab)

  48. Rank 48:
    Why -1/12 is a gold nugget

    Why -1/12 is a gold nugget

    2.9M views18 Mar 201415:17(opens in a new tab)

  49. Rank 49:
    Math Jokes Explained - Numberphile

    Math Jokes Explained - Numberphile

    2.9M views20 May 20137:00(opens in a new tab)

  50. Rank 50:
    Klein Bottles - Numberphile

    Klein Bottles - Numberphile

    2.8M views22 Jun 20158:25(opens in a new tab)