Q: Is 20,838 a Prime Number?
A: No, 20,838 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 20838 can be evenly divided by 1 2 3 6 23 46 69 138 151 302 453 906 3,473 6,946 10,419 and 20,838, with no remainder.
Since 20,838 cannot be divided by just 1 and 20,838, it is not a prime number.