Q: Is 261,426 a Prime Number?
A: No, 261,426 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 261426 can be evenly divided by 1 2 3 6 11 17 22 33 34 51 66 102 187 233 374 466 561 699 1,122 1,398 2,563 3,961 5,126 7,689 7,922 11,883 15,378 23,766 43,571 87,142 130,713 and 261,426, with no remainder.
Since 261,426 cannot be divided by just 1 and 261,426, it is not a prime number.