Q: Is 1,263,777 a Prime Number?
A: No, 1,263,777 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 1263777 can be evenly divided by 1 3 31 93 107 127 321 381 3,317 3,937 9,951 11,811 13,589 40,767 421,259 and 1,263,777, with no remainder.
Since 1,263,777 cannot be divided by just 1 and 1,263,777, it is not a prime number.