Q: Is 142,639 a Prime Number?
A: No, 142,639 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 142639 can be evenly divided by 1 7 41 49 71 287 497 2,009 2,911 3,479 20,377 and 142,639, with no remainder.
Since 142,639 cannot be divided by just 1 and 142,639, it is not a prime number.