Q: Is 231,318 a Prime Number?
A: No, 231,318 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 231318 can be evenly divided by 1 2 3 6 9 18 71 142 181 213 362 426 543 639 1,086 1,278 1,629 3,258 12,851 25,702 38,553 77,106 115,659 and 231,318, with no remainder.
Since 231,318 cannot be divided by just 1 and 231,318, it is not a prime number.