Q: Is 311,820 a Prime Number?
A: No, 311,820 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 311820 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 60 5,197 10,394 15,591 20,788 25,985 31,182 51,970 62,364 77,955 103,940 155,910 and 311,820, with no remainder.
Since 311,820 cannot be divided by just 1 and 311,820, it is not a prime number.