Q: Is 1,405,125 a Prime Number?
A: No, 1,405,125 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 1405125 can be evenly divided by 1 3 5 9 15 25 45 75 125 225 375 1,125 1,249 3,747 6,245 11,241 18,735 31,225 56,205 93,675 156,125 281,025 468,375 and 1,405,125, with no remainder.
Since 1,405,125 cannot be divided by just 1 and 1,405,125, it is not a prime number.