Q: Is 542,742 a Prime Number?
A: No, 542,742 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 542742 can be evenly divided by 1 2 3 6 17 34 51 102 289 313 578 626 867 939 1,734 1,878 5,321 10,642 15,963 31,926 90,457 180,914 271,371 and 542,742, with no remainder.
Since 542,742 cannot be divided by just 1 and 542,742, it is not a prime number.