Q: Is 145,125 a Prime Number?
A: No, 145,125 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 145125 can be evenly divided by 1 3 5 9 15 25 27 43 45 75 125 129 135 215 225 375 387 645 675 1,075 1,125 1,161 1,935 3,225 3,375 5,375 5,805 9,675 16,125 29,025 48,375 and 145,125, with no remainder.
Since 145,125 cannot be divided by just 1 and 145,125, it is not a prime number.