Q: Is 626,642 a Prime Number?
A: No, 626,642 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 626642 can be evenly divided by 1 2 313,321 and 626,642, with no remainder.
Since 626,642 cannot be divided by just 1 and 626,642, it is not a prime number.