2 added 44 characters in body

# PARI/GP, 16 bytes

n->prod(i=2,n,i)


The shortest answer would be the native ! which is disallowed.

## PARI/GP (16)

n->prod(i=2,n,i)


The shortest answer would be the native ! which is disallowed.

# PARI/GP, 16 bytes

n->prod(i=2,n,i)


The shortest answer would be the native ! which is disallowed.

1

## PARI/GP (16)

n->prod(i=2,n,i)


The shortest answer would be the native ! which is disallowed.