Q: Is 378,189 a Prime Number?
A: No, 378,189 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 378189 can be evenly divided by 1 3 7 9 21 23 27 29 63 69 81 87 161 189 203 207 261 483 567 609 621 667 783 1,449 1,827 1,863 2,001 2,349 4,347 4,669 5,481 6,003 13,041 14,007 16,443 18,009 42,021 54,027 126,063 and 378,189, with no remainder.
Since 378,189 cannot be divided by just 1 and 378,189, it is not a prime number.