Q: Is 231,945 a Prime Number?
A: No, 231,945 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 231945 can be evenly divided by 1 3 5 7 15 21 35 47 105 141 235 329 705 987 1,645 2,209 4,935 6,627 11,045 15,463 33,135 46,389 77,315 and 231,945, with no remainder.
Since 231,945 cannot be divided by just 1 and 231,945, it is not a prime number.