Q: Is 315,990 a Prime Number?
A: No, 315,990 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 315990 can be evenly divided by 1 2 3 5 6 9 10 15 18 30 45 90 3,511 7,022 10,533 17,555 21,066 31,599 35,110 52,665 63,198 105,330 157,995 and 315,990, with no remainder.
Since 315,990 cannot be divided by just 1 and 315,990, it is not a prime number.