Q: Is 871,665 a Prime Number?
A: No, 871,665 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 871665 can be evenly divided by 1 3 5 15 58,111 174,333 290,555 and 871,665, with no remainder.
Since 871,665 cannot be divided by just 1 and 871,665, it is not a prime number.