Q: Is 18,820 a Prime Number?
A: No, 18,820 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 18820 can be evenly divided by 1 2 4 5 10 20 941 1,882 3,764 4,705 9,410 and 18,820, with no remainder.
Since 18,820 cannot be divided by just 1 and 18,820, it is not a prime number.