Q: Is 21,468 a Prime Number?
A: No, 21,468 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 21468 can be evenly divided by 1 2 3 4 6 12 1,789 3,578 5,367 7,156 10,734 and 21,468, with no remainder.
Since 21,468 cannot be divided by just 1 and 21,468, it is not a prime number.