Factorial of 120 (120!)

The factorial of 120, written as 120!, is the product of all positive integers less than or equal to 120.

What Is the Formula to Calculate 120 Factorial?

The formula for calculating 120 factorial (120!) is:

120! = 120 × 119 × 118 × 117 × 116 × 115 × 114 × 113 × 112 × 111 × 110 × 109 × 108 × 107 × 106 × 105 × 104 × 103 × 102 × 101 × 100 × 99 × 98 × 97 × 96 × 95 × 94 × 93 × 92 × 91 × 90 × 89 × 88 × 87 × 86 × 85 × 84 × 83 × 82 × 81 × 80 × 79 × 78 × 77 × 76 × 75 × 74 × 73 × 72 × 71 × 70 × 69 × 68 × 67 × 66 × 65 × 64 × 63 × 62 × 61 × 60 × 59 × 58 × 57 × 56 × 55 × 54 × 53 × 52 × 51 × 50 × 49 × 48 × 47 × 46 × 45 × 44 × 43 × 42 × 41 × 40 × 39 × 38 × 37 × 36 × 35 × 34 × 33 × 32 × 31 × 30 × 29 × 28 × 27 × 26 × 25 × 24 × 23 × 22 × 21 × 20 × 19 × 18 × 17 × 16 × 15 × 14 × 13 × 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = 6,689,502,913,449,123,933,681,342,530,579,439,120,523,775,756,341,546,089,360,093,784,620,090,324,126,011,858,610,763,674,005,344,861,930,779,387,322,735,825,049,576,193,801,545,269,664,994,272,835,560,837,966,773,424,760,538,449,951,889,918,907,707,412,713,570,304

How Many Digits in 120 Factorial?

The number 120! has 20 digits.

Factorial Table From 1! to 120!

Frequently Asked Questions

• What is 120!?

  It's the product of all positive integers from 1 to 120. Answer: 6,689,502,913,449,123,933,681,342,530,579,439,120,523,775,756,341,546,089,360,093,784,620,090,324,126,011,858,610,763,674,005,344,861,930,779,387,322,735,825,049,576,193,801,545,269,664,994,272,835,560,837,966,773,424,760,538,449,951,889,918,907,707,412,713,570,304.

• Is factorial defined for negative numbers?

  No. Factorials are only defined for non-negative integers (0 and up).

• What is 0!?

  By definition, the factorial of 0 is 1.

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