Q: Is 428,475 a Prime Number?
A: No, 428,475 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 428475 can be evenly divided by 1 3 5 15 25 29 75 87 145 197 435 591 725 985 2,175 2,955 4,925 5,713 14,775 17,139 28,565 85,695 142,825 and 428,475, with no remainder.
Since 428,475 cannot be divided by just 1 and 428,475, it is not a prime number.