Q: Is 18,426 a Prime Number?
A: No, 18,426 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 18426 can be evenly divided by 1 2 3 6 37 74 83 111 166 222 249 498 3,071 6,142 9,213 and 18,426, with no remainder.
Since 18,426 cannot be divided by just 1 and 18,426, it is not a prime number.