Q: Is 4,215,375 a Prime Number?
A: No, 4,215,375 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 4215375 can be evenly divided by 1 3 5 9 15 25 27 45 75 125 135 225 375 675 1,125 1,249 3,375 3,747 6,245 11,241 18,735 31,225 33,723 56,205 93,675 156,125 168,615 281,025 468,375 843,075 1,405,125 and 4,215,375, with no remainder.
Since 4,215,375 cannot be divided by just 1 and 4,215,375, it is not a prime number.