Q: Is 672,378 a Prime Number?
A: No, 672,378 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 672378 can be evenly divided by 1 2 3 6 7 14 21 42 49 98 147 294 2,287 4,574 6,861 13,722 16,009 32,018 48,027 96,054 112,063 224,126 336,189 and 672,378, with no remainder.
Since 672,378 cannot be divided by just 1 and 672,378, it is not a prime number.