Q: Is 620,604 a Prime Number?
A: No, 620,604 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 620604 can be evenly divided by 1 2 3 4 6 9 12 18 36 17,239 34,478 51,717 68,956 103,434 155,151 206,868 310,302 and 620,604, with no remainder.
Since 620,604 cannot be divided by just 1 and 620,604, it is not a prime number.