Q: Is 642,710 a Prime Number?
A: No, 642,710 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 642710 can be evenly divided by 1 2 5 10 64,271 128,542 321,355 and 642,710, with no remainder.
Since 642,710 cannot be divided by just 1 and 642,710, it is not a prime number.