Q: Is 311,980 a Prime Number?
A: No, 311,980 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 311980 can be evenly divided by 1 2 4 5 10 19 20 38 76 95 190 380 821 1,642 3,284 4,105 8,210 15,599 16,420 31,198 62,396 77,995 155,990 and 311,980, with no remainder.
Since 311,980 cannot be divided by just 1 and 311,980, it is not a prime number.