Q: Is 422,487 a Prime Number?
A: No, 422,487 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 422487 can be evenly divided by 1 3 9 13 23 39 69 117 157 207 299 471 897 1,413 2,041 2,691 3,611 6,123 10,833 18,369 32,499 46,943 140,829 and 422,487, with no remainder.
Since 422,487 cannot be divided by just 1 and 422,487, it is not a prime number.