Q: Is 542,438 a Prime Number?
A: No, 542,438 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 542438 can be evenly divided by 1 2 13 26 31 62 403 673 806 1,346 8,749 17,498 20,863 41,726 271,219 and 542,438, with no remainder.
Since 542,438 cannot be divided by just 1 and 542,438, it is not a prime number.