Q: Is 661,315 a Prime Number?
A: No, 661,315 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 661315 can be evenly divided by 1 5 132,263 and 661,315, with no remainder.
Since 661,315 cannot be divided by just 1 and 661,315, it is not a prime number.