Q: Is 661,317 a Prime Number?
A: No, 661,317 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 661317 can be evenly divided by 1 3 17 51 12,967 38,901 220,439 and 661,317, with no remainder.
Since 661,317 cannot be divided by just 1 and 661,317, it is not a prime number.