Q: Is 428,415 a Prime Number?
A: No, 428,415 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 428415 can be evenly divided by 1 3 5 13 15 39 65 169 195 507 845 2,197 2,535 6,591 10,985 28,561 32,955 85,683 142,805 and 428,415, with no remainder.
Since 428,415 cannot be divided by just 1 and 428,415, it is not a prime number.