Q: Is 670 a Prime Number?
A: No, 670 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 670 can be evenly divided by 1 2 5 10 67 134 335 and 670, with no remainder.
Since 670 cannot be divided by just 1 and 670, it is not a prime number.