Q: Is 720,144 a Prime Number?
A: No, 720,144 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 720144 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 1,667 3,334 5,001 6,668 10,002 13,336 15,003 20,004 26,672 30,006 40,008 45,009 60,012 80,016 90,018 120,024 180,036 240,048 360,072 and 720,144, with no remainder.
Since 720,144 cannot be divided by just 1 and 720,144, it is not a prime number.