Q: Is 311,490 a Prime Number?
A: No, 311,490 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 311490 can be evenly divided by 1 2 3 5 6 9 10 15 18 30 45 90 3,461 6,922 10,383 17,305 20,766 31,149 34,610 51,915 62,298 103,830 155,745 and 311,490, with no remainder.
Since 311,490 cannot be divided by just 1 and 311,490, it is not a prime number.