Q: Is 165,865 a Prime Number?
A: No, 165,865 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 165865 can be evenly divided by 1 5 7 35 49 245 677 3,385 4,739 23,695 33,173 and 165,865, with no remainder.
Since 165,865 cannot be divided by just 1 and 165,865, it is not a prime number.