Q: Is 642,634 a Prime Number?
A: No, 642,634 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 642634 can be evenly divided by 1 2 17 34 41 82 461 697 922 1,394 7,837 15,674 18,901 37,802 321,317 and 642,634, with no remainder.
Since 642,634 cannot be divided by just 1 and 642,634, it is not a prime number.