Q: Is 216,375 a Prime Number?
A: No, 216,375 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 216375 can be evenly divided by 1 3 5 15 25 75 125 375 577 1,731 2,885 8,655 14,425 43,275 72,125 and 216,375, with no remainder.
Since 216,375 cannot be divided by just 1 and 216,375, it is not a prime number.