Q: Is 2,431,125 a Prime Number?
A: No, 2,431,125 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 2431125 can be evenly divided by 1 3 5 9 15 25 45 75 125 225 375 1,125 2,161 6,483 10,805 19,449 32,415 54,025 97,245 162,075 270,125 486,225 810,375 and 2,431,125, with no remainder.
Since 2,431,125 cannot be divided by just 1 and 2,431,125, it is not a prime number.