Q: Is 181,520 a Prime Number?
A: No, 181,520 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 181520 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 2,269 4,538 9,076 11,345 18,152 22,690 36,304 45,380 90,760 and 181,520, with no remainder.
Since 181,520 cannot be divided by just 1 and 181,520, it is not a prime number.