Q: Is 671,251 a Prime Number?
A: No, 671,251 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 671251 can be evenly divided by 1 7 19 49 103 133 343 721 931 1,957 5,047 6,517 13,699 35,329 95,893 and 671,251, with no remainder.
Since 671,251 cannot be divided by just 1 and 671,251, it is not a prime number.