Q: Is 18,580 a Prime Number?
A: No, 18,580 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 18580 can be evenly divided by 1 2 4 5 10 20 929 1,858 3,716 4,645 9,290 and 18,580, with no remainder.
Since 18,580 cannot be divided by just 1 and 18,580, it is not a prime number.