Q: Is 720,432 a Prime Number?
A: No, 720,432 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 720432 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 5,003 10,006 15,009 20,012 30,018 40,024 45,027 60,036 80,048 90,054 120,072 180,108 240,144 360,216 and 720,432, with no remainder.
Since 720,432 cannot be divided by just 1 and 720,432, it is not a prime number.