1! Factorial Of 1
The factorial for a positive 1 number or integer is the product of all the positive numbers preceding or equivalent to 1.
How to calculate factorial of 1 ?
1 factorial means; multiply of from 1 to 1 all numbers will give the answer of factorial Of 1 .
1! =
1
Once you have the sequence of numbers written down, you can multiply them together.
1 Factorial :
Answer: 1! = 1
Sample 1 To 10 Factorials
|
n |
Factorial of a Number n! |
Expansion |
Value |
| 1 | 1! | 1 | 1 |
| 2 | 2! | 2 x 1 | 2 |
| 3 | 3! | 3 x 2 x 1 | 6 |
| 4 | 4! | 4 x 3 x 2 x 1 | 24 |
| 5 | 5! | 5 x 4 x 3 x 2 x 1 | 120 |
| 6 | 6! | 6 x 5 x 4 x 3 x 2 x 1 | 720 |
| 7 | 7! | 7 x 6 x 5 x 4 x 3 x 2 x 1 | 5,040 |
| 8 | 8! | 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 | 40,320 |
| 9 | 9! | 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 | 362,880 |
| 10 | 10! | 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 | 3,628,800 |