Q: Is 771,920 a Prime Number?
A: No, 771,920 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 771920 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 9,649 19,298 38,596 48,245 77,192 96,490 154,384 192,980 385,960 and 771,920, with no remainder.
Since 771,920 cannot be divided by just 1 and 771,920, it is not a prime number.