Q: Is 671,607 a Prime Number?
A: No, 671,607 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 671607 can be evenly divided by 1 3 9 74,623 223,869 and 671,607, with no remainder.
Since 671,607 cannot be divided by just 1 and 671,607, it is not a prime number.