Q: Is 309,491 a Prime Number?
A: No, 309,491 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 309491 can be evenly divided by 1 7 13 19 91 133 179 247 1,253 1,729 2,327 3,401 16,289 23,807 44,213 and 309,491, with no remainder.
Since 309,491 cannot be divided by just 1 and 309,491, it is not a prime number.