Question

find the value of 20!​

Answer 1

Step-by-step explanation:

pls mark it as the brainliest answer....

Answer 2

20! = 2.432902008176640 x 10^18

Factorial of a number n is calculated by multiplying n with all it's previous numbers all the way to the first non-zero positive integer i.e: 1

Mathematically expressed as:

n! = n × n-1 × n-2 × .... × 1

Thus,

20! = 20 × 19 × 18 × .... ×4 × 3 × 2 × 1  

∴ 20! = 2432902008176640