Q: Is 621,707 a Prime Number?
A: No, 621,707 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 621707 can be evenly divided by 1 17 36,571 and 621,707, with no remainder.
Since 621,707 cannot be divided by just 1 and 621,707, it is not a prime number.