Q: Is 840,072 a Prime Number?
A: No, 840,072 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 840072 can be evenly divided by 1 2 3 4 6 8 12 17 24 29 34 51 58 68 71 87 102 116 136 142 174 204 213 232 284 348 408 426 493 568 696 852 986 1,207 1,479 1,704 1,972 2,059 2,414 2,958 3,621 3,944 4,118 4,828 5,916 6,177 7,242 8,236 9,656 11,832 12,354 14,484 16,472 24,708 28,968 35,003 49,416 70,006 105,009 140,012 210,018 280,024 420,036 and 840,072, with no remainder.
Since 840,072 cannot be divided by just 1 and 840,072, it is not a prime number.