Q: Is 743,648 a Prime Number?
A: No, 743,648 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 743648 can be evenly divided by 1 2 4 8 16 17 32 34 68 136 272 544 1,367 2,734 5,468 10,936 21,872 23,239 43,744 46,478 92,956 185,912 371,824 and 743,648, with no remainder.
Since 743,648 cannot be divided by just 1 and 743,648, it is not a prime number.