Q: Is 331,720 a Prime Number?
A: No, 331,720 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 331720 can be evenly divided by 1 2 4 5 8 10 20 40 8,293 16,586 33,172 41,465 66,344 82,930 165,860 and 331,720, with no remainder.
Since 331,720 cannot be divided by just 1 and 331,720, it is not a prime number.