Q: Is 775,000 a Prime Number?
A: No, 775,000 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 775000 can be evenly divided by 1 2 4 5 8 10 20 25 31 40 50 62 100 124 125 155 200 248 250 310 500 620 625 775 1,000 1,240 1,250 1,550 2,500 3,100 3,125 3,875 5,000 6,200 6,250 7,750 12,500 15,500 19,375 25,000 31,000 38,750 77,500 96,875 155,000 193,750 387,500 and 775,000, with no remainder.
Since 775,000 cannot be divided by just 1 and 775,000, it is not a prime number.