Q: Is 311,720 a Prime Number?
A: No, 311,720 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 311720 can be evenly divided by 1 2 4 5 8 10 20 40 7,793 15,586 31,172 38,965 62,344 77,930 155,860 and 311,720, with no remainder.
Since 311,720 cannot be divided by just 1 and 311,720, it is not a prime number.