Question: why is 26 not a multiple of 3?
Answer: Even numbers end with 0, 2, 4, 6, or 8. For multiples of 3, you will be adding by 3's all the time. ... However, when you add the digits in 26 which is 2+6 that gives us 8 and 8 is not one of the ending numbers. Therefore 26 is not a multiple of 3.