Q: Is 523,428 a Prime Number?
A: No, 523,428 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 523428 can be evenly divided by 1 2 3 4 6 12 53 106 159 212 318 636 823 1,646 2,469 3,292 4,938 9,876 43,619 87,238 130,857 174,476 261,714 and 523,428, with no remainder.
Since 523,428 cannot be divided by just 1 and 523,428, it is not a prime number.