Q: Is 845,780 a Prime Number?
A: No, 845,780 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 845780 can be evenly divided by 1 2 4 5 10 13 20 26 52 65 130 260 3,253 6,506 13,012 16,265 32,530 42,289 65,060 84,578 169,156 211,445 422,890 and 845,780, with no remainder.
Since 845,780 cannot be divided by just 1 and 845,780, it is not a prime number.