Q: Is 542,605 a Prime Number?
A: No, 542,605 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 542605 can be evenly divided by 1 5 7 35 37 185 259 419 1,295 2,095 2,933 14,665 15,503 77,515 108,521 and 542,605, with no remainder.
Since 542,605 cannot be divided by just 1 and 542,605, it is not a prime number.