Q: Is 542,531 a Prime Number?
A: No, 542,531 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 542531 can be evenly divided by 1 11 31 37 43 341 407 473 1,147 1,333 1,591 12,617 14,663 17,501 49,321 and 542,531, with no remainder.
Since 542,531 cannot be divided by just 1 and 542,531, it is not a prime number.