Q: Is 871,839 a Prime Number?
A: No, 871,839 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 871839 can be evenly divided by 1 3 9 73 219 657 1,327 3,981 11,943 96,871 290,613 and 871,839, with no remainder.
Since 871,839 cannot be divided by just 1 and 871,839, it is not a prime number.