Q: Is 661,397 a Prime Number?
A: No, 661,397 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 661397 can be evenly divided by 1 11 60,127 and 661,397, with no remainder.
Since 661,397 cannot be divided by just 1 and 661,397, it is not a prime number.