Q: Is 378,225 a Prime Number?
A: No, 378,225 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 378225 can be evenly divided by 1 3 5 9 15 25 41 45 75 123 205 225 369 615 1,025 1,681 1,845 3,075 5,043 8,405 9,225 15,129 25,215 42,025 75,645 126,075 and 378,225, with no remainder.
Since 378,225 cannot be divided by just 1 and 378,225, it is not a prime number.