Q: Is 311,145 a Prime Number?
A: No, 311,145 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 311145 can be evenly divided by 1 3 5 15 20,743 62,229 103,715 and 311,145, with no remainder.
Since 311,145 cannot be divided by just 1 and 311,145, it is not a prime number.