Q: Is 261,428 a Prime Number?
A: No, 261,428 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 261428 can be evenly divided by 1 2 4 65,357 130,714 and 261,428, with no remainder.
Since 261,428 cannot be divided by just 1 and 261,428, it is not a prime number.