Q: Is 428,265 a Prime Number?
A: No, 428,265 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 428265 can be evenly divided by 1 3 5 9 15 31 45 93 155 279 307 465 921 1,395 1,535 2,763 4,605 9,517 13,815 28,551 47,585 85,653 142,755 and 428,265, with no remainder.
Since 428,265 cannot be divided by just 1 and 428,265, it is not a prime number.