Q: Is 780,720 a Prime Number?
A: No, 780,720 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 780720 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 3,253 6,506 9,759 13,012 16,265 19,518 26,024 32,530 39,036 48,795 52,048 65,060 78,072 97,590 130,120 156,144 195,180 260,240 390,360 and 780,720, with no remainder.
Since 780,720 cannot be divided by just 1 and 780,720, it is not a prime number.