Q: Is 178,820 a Prime Number?
A: No, 178,820 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 178820 can be evenly divided by 1 2 4 5 10 20 8,941 17,882 35,764 44,705 89,410 and 178,820, with no remainder.
Since 178,820 cannot be divided by just 1 and 178,820, it is not a prime number.