Q: Is 620,521 a Prime Number?
A: No, 620,521 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 620521 can be evenly divided by 1 11 19 209 2,969 32,659 56,411 and 620,521, with no remainder.
Since 620,521 cannot be divided by just 1 and 620,521, it is not a prime number.