Q: Is 523,628 a Prime Number?
A: No, 523,628 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 523628 can be evenly divided by 1 2 4 7 14 28 18,701 37,402 74,804 130,907 261,814 and 523,628, with no remainder.
Since 523,628 cannot be divided by just 1 and 523,628, it is not a prime number.