Q: Is 277,428 a Prime Number?
A: No, 277,428 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 277428 can be evenly divided by 1 2 3 4 6 12 61 122 183 244 366 379 732 758 1,137 1,516 2,274 4,548 23,119 46,238 69,357 92,476 138,714 and 277,428, with no remainder.
Since 277,428 cannot be divided by just 1 and 277,428, it is not a prime number.