Q: Is 266,864 a Prime Number?
A: No, 266,864 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 266864 can be evenly divided by 1 2 4 8 13 16 26 52 104 208 1,283 2,566 5,132 10,264 16,679 20,528 33,358 66,716 133,432 and 266,864, with no remainder.
Since 266,864 cannot be divided by just 1 and 266,864, it is not a prime number.