Q: Is 776,625 a Prime Number?
A: No, 776,625 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 776625 can be evenly divided by 1 3 5 15 19 25 57 75 95 109 125 285 327 375 475 545 1,425 1,635 2,071 2,375 2,725 6,213 7,125 8,175 10,355 13,625 31,065 40,875 51,775 155,325 258,875 and 776,625, with no remainder.
Since 776,625 cannot be divided by just 1 and 776,625, it is not a prime number.