Q: Is 671,518 a Prime Number?
A: No, 671,518 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 671518 can be evenly divided by 1 2 71 142 4,729 9,458 335,759 and 671,518, with no remainder.
Since 671,518 cannot be divided by just 1 and 671,518, it is not a prime number.