Question

What is 1! = ?

Answer 1

1

Answer 2

2!=2(1)=2
3!=3(2)(1)=6(1)=6
4!=4(3)(2)(1)=12(2)=24
5!=5(4)(3)(2)(1)=5(24)=120

Answer 3

1

Answer 4

732981738291782177482684783623876432

Answer 5

so then we would say that it is a prime number ?

Answer 6

1 is not prime

Answer 7

no it is not

Answer 8

oh ok

Answer 9

2,3,5,7,11,13,17,19 are some prime numbers
and there are more