Q: Is 21,098 a Prime Number?
A: No, 21,098 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 21098 can be evenly divided by 1 2 7 11 14 22 77 137 154 274 959 1,507 1,918 3,014 10,549 and 21,098, with no remainder.
Since 21,098 cannot be divided by just 1 and 21,098, it is not a prime number.