Q: Is 402,165 a Prime Number?
A: No, 402,165 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 402165 can be evenly divided by 1 3 5 9 15 27 45 81 135 243 331 405 993 1,215 1,655 2,979 4,965 8,937 14,895 26,811 44,685 80,433 134,055 and 402,165, with no remainder.
Since 402,165 cannot be divided by just 1 and 402,165, it is not a prime number.