Q: Is 871,408 a Prime Number?
A: No, 871,408 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 871408 can be evenly divided by 1 2 4 8 16 107 214 428 509 856 1,018 1,712 2,036 4,072 8,144 54,463 108,926 217,852 435,704 and 871,408, with no remainder.
Since 871,408 cannot be divided by just 1 and 871,408, it is not a prime number.