Q: Is 620,558 a Prime Number?
A: No, 620,558 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 620558 can be evenly divided by 1 2 31 62 10,009 20,018 310,279 and 620,558, with no remainder.
Since 620,558 cannot be divided by just 1 and 620,558, it is not a prime number.