Q: Is 31,580 a Prime Number?
A: No, 31,580 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 31580 can be evenly divided by 1 2 4 5 10 20 1,579 3,158 6,316 7,895 15,790 and 31,580, with no remainder.
Since 31,580 cannot be divided by just 1 and 31,580, it is not a prime number.