Q: Is 515,742 a Prime Number?
A: No, 515,742 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 515742 can be evenly divided by 1 2 3 6 43 86 129 258 1,999 3,998 5,997 11,994 85,957 171,914 257,871 and 515,742, with no remainder.
Since 515,742 cannot be divided by just 1 and 515,742, it is not a prime number.