Q: Is 671,634 a Prime Number?
A: No, 671,634 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 671634 can be evenly divided by 1 2 3 6 9 18 37,313 74,626 111,939 223,878 335,817 and 671,634, with no remainder.
Since 671,634 cannot be divided by just 1 and 671,634, it is not a prime number.