Q: Is 258,580 a Prime Number?
A: No, 258,580 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 258580 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 1,847 3,694 7,388 9,235 12,929 18,470 25,858 36,940 51,716 64,645 129,290 and 258,580, with no remainder.
Since 258,580 cannot be divided by just 1 and 258,580, it is not a prime number.