Q: Is 309,988 a Prime Number?
A: No, 309,988 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 309988 can be evenly divided by 1 2 4 7 14 28 11,071 22,142 44,284 77,497 154,994 and 309,988, with no remainder.
Since 309,988 cannot be divided by just 1 and 309,988, it is not a prime number.