Q: Is 765,216 a Prime Number?
A: No, 765,216 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 765216 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 2,657 5,314 7,971 10,628 15,942 21,256 23,913 31,884 42,512 47,826 63,768 85,024 95,652 127,536 191,304 255,072 382,608 and 765,216, with no remainder.
Since 765,216 cannot be divided by just 1 and 765,216, it is not a prime number.