Q: Is 623,508 a Prime Number?
A: No, 623,508 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 623508 can be evenly divided by 1 2 3 4 6 12 223 233 446 466 669 699 892 932 1,338 1,398 2,676 2,796 51,959 103,918 155,877 207,836 311,754 and 623,508, with no remainder.
Since 623,508 cannot be divided by just 1 and 623,508, it is not a prime number.