Q: Is 42,856 a Prime Number?
A: No, 42,856 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 42856 can be evenly divided by 1 2 4 8 11 22 44 88 487 974 1,948 3,896 5,357 10,714 21,428 and 42,856, with no remainder.
Since 42,856 cannot be divided by just 1 and 42,856, it is not a prime number.