Q: Is 670,491 a Prime Number?
A: No, 670,491 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 670491 can be evenly divided by 1 3 9 19 27 57 171 513 1,307 3,921 11,763 24,833 35,289 74,499 223,497 and 670,491, with no remainder.
Since 670,491 cannot be divided by just 1 and 670,491, it is not a prime number.