Q: Is 138,580 a Prime Number?
A: No, 138,580 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 138580 can be evenly divided by 1 2 4 5 10 13 20 26 41 52 65 82 130 164 169 205 260 338 410 533 676 820 845 1,066 1,690 2,132 2,665 3,380 5,330 6,929 10,660 13,858 27,716 34,645 69,290 and 138,580, with no remainder.
Since 138,580 cannot be divided by just 1 and 138,580, it is not a prime number.