Q: Is 265,780 a Prime Number?
A: No, 265,780 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 265780 can be evenly divided by 1 2 4 5 10 20 97 137 194 274 388 485 548 685 970 1,370 1,940 2,740 13,289 26,578 53,156 66,445 132,890 and 265,780, with no remainder.
Since 265,780 cannot be divided by just 1 and 265,780, it is not a prime number.