Q: Is 666,742 a Prime Number?
A: No, 666,742 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 666742 can be evenly divided by 1 2 41 47 82 94 173 346 1,927 3,854 7,093 8,131 14,186 16,262 333,371 and 666,742, with no remainder.
Since 666,742 cannot be divided by just 1 and 666,742, it is not a prime number.