Q: Is 620,635 a Prime Number?
A: No, 620,635 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 620635 can be evenly divided by 1 5 19 47 95 139 235 695 893 2,641 4,465 6,533 13,205 32,665 124,127 and 620,635, with no remainder.
Since 620,635 cannot be divided by just 1 and 620,635, it is not a prime number.