Q: Is 242,781 a Prime Number?
A: No, 242,781 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 242781 can be evenly divided by 1 3 7 11 21 33 77 231 1,051 3,153 7,357 11,561 22,071 34,683 80,927 and 242,781, with no remainder.
Since 242,781 cannot be divided by just 1 and 242,781, it is not a prime number.