Q: Is 140,625 a Prime Number?
A: No, 140,625 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 140625 can be evenly divided by 1 3 5 9 15 25 45 75 125 225 375 625 1,125 1,875 3,125 5,625 9,375 15,625 28,125 46,875 and 140,625, with no remainder.
Since 140,625 cannot be divided by just 1 and 140,625, it is not a prime number.