Q: Is 1,261,129 a Prime Number?
A: No, 1,261,129 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 1261129 can be evenly divided by 1 1,123 and 1,261,129, with no remainder.
Since 1,261,129 cannot be divided by just 1 and 1,261,129, it is not a prime number.