Q: Is 787,280 a Prime Number?
A: No, 787,280 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 787280 can be evenly divided by 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 757 1,040 1,514 3,028 3,785 6,056 7,570 9,841 12,112 15,140 19,682 30,280 39,364 49,205 60,560 78,728 98,410 157,456 196,820 393,640 and 787,280, with no remainder.
Since 787,280 cannot be divided by just 1 and 787,280, it is not a prime number.