Q: Is 775,400 a Prime Number?
A: No, 775,400 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 775400 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 200 3,877 7,754 15,508 19,385 31,016 38,770 77,540 96,925 155,080 193,850 387,700 and 775,400, with no remainder.
Since 775,400 cannot be divided by just 1 and 775,400, it is not a prime number.