What is 42 factorial?

42! = 14050061177528798985.... It has 52 digits and 9 trailing zeros.

Calculate the factorial of 42 - Factorial Calculator

Quick Answer: 42! = 1405006117...0000
52 digits | 9 trailing zeros

Factorial Calculator Until 10,000

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42! Result

14050061177528798985...00000000

How 42! is calculated

The number of trailing zeros in 42! is 9.
The number of digits in 42 factorial is 52.
The factorial of 42 is calculated, through its definition, this way:
42! = 42 • 41 • 40 • 39 • 38 ... 3 • 2 • 1

Exact value of 42!

42! = 1405006117752879898543142606244511569936384000000000

Nearby Factorials

n	n!	Digits	Trailing Zeros
37!	13763753...0000	44	8
38!	52302261...0000	45	8
39!	20397882...0000	47	8
40!	81591528...0000	48	9
41!	33452526...0000	50	9
42!	14050061...0000	52	9
43!	60415263...0000	53	9
44!	26582715...0000	55	9
45!	11962222...0000	57	10
46!	55026221...0000	58	10
47!	25862324...0000	60	10

More factorial calculations

Here you can find answers to questions like: Calculate the factorial of 42 What is the factorial of 42? What is the last digits of factorial of 42? How many trailing zeros in 42 factorial? How many digits are there in 42 factorial? Use the factorial calculator above to find the factorial of any natural between 0 and 10,000.

What is factorial?

Definition of factorial

The factorial is a quantity defined for any integer n greater than or equal to 0.

The factorial is the product of all integers less than or equal to n but greater than or equal to 1. The factorial value of 0 is, by definition, equal to 1. For negative integers, factorials are not defined. The factorial can be seen as the result of multiplying a sequence of descending natural numbers (such as 3 × 2 × 1).

The factorial symbol is the exclamation mark (!).

The factorial formula

If n is a natural number greater than or equal to 1, then

n! = n x (n - 1) x (n - 2) x (n - 3) ... 3 x 2 x 1

If n = 0, then n! = 1, by convention.

Example: 6! = 6 x 5 x 4 x 3 x 2 x 1 = 720

Shortcut to find trailing zeros in a factorial

Trailing zeros are a sequence of zeros in the decimal representation of a number, after which no other digits follow. This video shows how to find the trailing zeros of a factorial easily.

Table of factorials until 30

n	n!
1!	1	#
2!	2	#
3!	6	#
4!	24	#
5!	120	#
6!	720	#
7!	5040	#
8!	40320	#
9!	362880	#
10!	3628800	#
11!	39916800	#
12!	479001600	#
13!	6227020800	#
14!	87178291200	#
15!	1307674368000	#
16!	20922789888000	#
17!	355687428096000	#
18!	6402373705728000	#
19!	121645100408832000	#
20!	2432902008176640000	#
21!	51090942171709440000	#
22!	1124000727777607680000	#
23!	25852016738884976640000	#
24!	620448401733239439360000	#
25!	15511210043330985984000000	#
26!	403291461126605635584000000	#
27!	10888869450418352160768000000	#
28!	304888344611713860501504000000	#
29!	8841761993739701954543616000000	#
30!	265252859812191058636308480000000	#

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Trailing Zeros in Factorials

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