Q: Is 19,943 a Prime Number?
A: No, 19,943 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 19943 can be evenly divided by 1 7 11 37 49 77 259 407 539 1,813 2,849 and 19,943, with no remainder.
Since 19,943 cannot be divided by just 1 and 19,943, it is not a prime number.