Q: Is 581,628 a Prime Number?
A: No, 581,628 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 581628 can be evenly divided by 1 2 3 4 6 12 19 38 57 76 114 228 2,551 5,102 7,653 10,204 15,306 30,612 48,469 96,938 145,407 193,876 290,814 and 581,628, with no remainder.
Since 581,628 cannot be divided by just 1 and 581,628, it is not a prime number.