Q: Is 770,840 a Prime Number?
A: No, 770,840 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 770840 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 2,753 5,506 11,012 13,765 19,271 22,024 27,530 38,542 55,060 77,084 96,355 110,120 154,168 192,710 385,420 and 770,840, with no remainder.
Since 770,840 cannot be divided by just 1 and 770,840, it is not a prime number.