Q: Is 21,112 a Prime Number?
A: No, 21,112 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 21112 can be evenly divided by 1 2 4 7 8 13 14 26 28 29 52 56 58 91 104 116 182 203 232 364 377 406 728 754 812 1,508 1,624 2,639 3,016 5,278 10,556 and 21,112, with no remainder.
Since 21,112 cannot be divided by just 1 and 21,112, it is not a prime number.