Q: Is 780,080 a Prime Number?
A: No, 780,080 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 780080 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 70 80 98 112 140 196 199 245 280 392 398 490 560 784 796 980 995 1,393 1,592 1,960 1,990 2,786 3,184 3,920 3,980 5,572 6,965 7,960 9,751 11,144 13,930 15,920 19,502 22,288 27,860 39,004 48,755 55,720 78,008 97,510 111,440 156,016 195,020 390,040 and 780,080, with no remainder.
Since 780,080 cannot be divided by just 1 and 780,080, it is not a prime number.