Q: Is 265,840 a Prime Number?
A: No, 265,840 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 265840 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 3,323 6,646 13,292 16,615 26,584 33,230 53,168 66,460 132,920 and 265,840, with no remainder.
Since 265,840 cannot be divided by just 1 and 265,840, it is not a prime number.