Q: Is 12,878 a Prime Number?
A: No, 12,878 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 12878 can be evenly divided by 1 2 47 94 137 274 6,439 and 12,878, with no remainder.
Since 12,878 cannot be divided by just 1 and 12,878, it is not a prime number.