Q: Is 311,997 a Prime Number?
A: No, 311,997 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 311997 can be evenly divided by 1 3 7 21 83 179 249 537 581 1,253 1,743 3,759 14,857 44,571 103,999 and 311,997, with no remainder.
Since 311,997 cannot be divided by just 1 and 311,997, it is not a prime number.