Q: Is 231,987 a Prime Number?
A: No, 231,987 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 231987 can be evenly divided by 1 3 7 21 11,047 33,141 77,329 and 231,987, with no remainder.
Since 231,987 cannot be divided by just 1 and 231,987, it is not a prime number.