Q: Is 423,987 a Prime Number?
A: No, 423,987 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 423987 can be evenly divided by 1 3 31 47 93 97 141 291 1,457 3,007 4,371 4,559 9,021 13,677 141,329 and 423,987, with no remainder.
Since 423,987 cannot be divided by just 1 and 423,987, it is not a prime number.