The sum of the digits in 153 is 9; therefore, 153 is divisible by 3.
The sum of the digits in 3,425 is 14; therefore, 3,425 is divisible by 3.
The sum of the digits in 496 is 19; therefore, 496 is divisible by 9.
The sum of the digits in 495 is 18; therefore, 495 is divisible by 9.
Post a 3 digit number with no repeating digits that is divisible by 3.
Post a 4 digit number with no repeating digits that is divisible by 3.
Post a 5 digit number with no repeating digits that is divisible by 3.
Post a 3 digit number with no repeating digits that is divisible by 9.
Post a 4 digit number with no repeating digits that is divisible by 9.
Post a 5 digit number with no repeating digits that is divisible by 9.
Are all numbers divisible by 9 also divisible by 3? Explain your answer.