Q: Is 309,942 a Prime Number?
A: No, 309,942 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 309942 can be evenly divided by 1 2 3 6 9 18 67 134 201 257 402 514 603 771 1,206 1,542 2,313 4,626 17,219 34,438 51,657 103,314 154,971 and 309,942, with no remainder.
Since 309,942 cannot be divided by just 1 and 309,942, it is not a prime number.