Q: Is 642,607 a Prime Number?
A: No, 642,607 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 642607 can be evenly divided by 1 7 91,801 and 642,607, with no remainder.
Since 642,607 cannot be divided by just 1 and 642,607, it is not a prime number.