Q: Is 21,850 a Prime Number?
A: No, 21,850 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 21850 can be evenly divided by 1 2 5 10 19 23 25 38 46 50 95 115 190 230 437 475 575 874 950 1,150 2,185 4,370 10,925 and 21,850, with no remainder.
Since 21,850 cannot be divided by just 1 and 21,850, it is not a prime number.