Q: Is 21,070 a Prime Number?
A: No, 21,070 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 21070 can be evenly divided by 1 2 5 7 10 14 35 43 49 70 86 98 215 245 301 430 490 602 1,505 2,107 3,010 4,214 10,535 and 21,070, with no remainder.
Since 21,070 cannot be divided by just 1 and 21,070, it is not a prime number.