Q: Is 165,378 a Prime Number?
A: No, 165,378 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 165378 can be evenly divided by 1 2 3 6 43 86 129 258 641 1,282 1,923 3,846 27,563 55,126 82,689 and 165,378, with no remainder.
Since 165,378 cannot be divided by just 1 and 165,378, it is not a prime number.