Q: Is 42,872 a Prime Number?
A: No, 42,872 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 42872 can be evenly divided by 1 2 4 8 23 46 92 184 233 466 932 1,864 5,359 10,718 21,436 and 42,872, with no remainder.
Since 42,872 cannot be divided by just 1 and 42,872, it is not a prime number.