Q: Is 172,542 a Prime Number?
A: No, 172,542 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 172542 can be evenly divided by 1 2 3 6 149 193 298 386 447 579 894 1,158 28,757 57,514 86,271 and 172,542, with no remainder.
Since 172,542 cannot be divided by just 1 and 172,542, it is not a prime number.