Q: Is 628,542 a Prime Number?
A: No, 628,542 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 628542 can be evenly divided by 1 2 3 6 9 18 34,919 69,838 104,757 209,514 314,271 and 628,542, with no remainder.
Since 628,542 cannot be divided by just 1 and 628,542, it is not a prime number.