Q: Is 423,507 a Prime Number?
A: No, 423,507 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 423507 can be evenly divided by 1 3 7 21 43 49 67 129 147 201 301 469 903 1,407 2,107 2,881 3,283 6,321 8,643 9,849 20,167 60,501 141,169 and 423,507, with no remainder.
Since 423,507 cannot be divided by just 1 and 423,507, it is not a prime number.