Factorial of 42 (42!)
RESULT: 1,405,006,117,752,879,788,779,635,797,590,784,832,178,972,610,527,232
The factorial of 42, written as 42!, is the product of all positive integers less than or equal to 42.
What Is the Formula to Calculate 42 Factorial?
The formula for calculating 42 factorial (42!) is:
42! = 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 = 1,405,006,117,752,879,788,779,635,797,590,784,832,178,972,610,527,232
How Many Digits in 42 Factorial?
The number 42! has 19 digits.
Factorial Table From 1! to 42!
| n | n! |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 24 |
| 5 | 120 |
| 6 | 720 |
| 7 | 5,040 |
| 8 | 40,320 |
| 9 | 362,880 |
| 10 | 3,628,800 |
Frequently Asked Questions
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What is 42!?
It's the product of all positive integers from 1 to 42. Answer: 1,405,006,117,752,879,788,779,635,797,590,784,832,178,972,610,527,232.
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Is factorial defined for negative numbers?
No. Factorials are only defined for non-negative integers (0 and up).
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What is 0!?
By definition, the factorial of 0 is 1.