Q: Is 145,580 a Prime Number?
A: No, 145,580 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 145580 can be evenly divided by 1 2 4 5 10 20 29 58 116 145 251 290 502 580 1,004 1,255 2,510 5,020 7,279 14,558 29,116 36,395 72,790 and 145,580, with no remainder.
Since 145,580 cannot be divided by just 1 and 145,580, it is not a prime number.