Q: Is 165,820 a Prime Number?
A: No, 165,820 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 165820 can be evenly divided by 1 2 4 5 10 20 8,291 16,582 33,164 41,455 82,910 and 165,820, with no remainder.
Since 165,820 cannot be divided by just 1 and 165,820, it is not a prime number.