Q: Is 318,580 a Prime Number?
A: No, 318,580 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 318580 can be evenly divided by 1 2 4 5 10 17 20 34 68 85 170 340 937 1,874 3,748 4,685 9,370 15,929 18,740 31,858 63,716 79,645 159,290 and 318,580, with no remainder.
Since 318,580 cannot be divided by just 1 and 318,580, it is not a prime number.