Tag Archives: divisibility by 3

Problem of the Week 6 – Divisibility by 6

Problem The number 25a where a is a digit is divisible by 6. What is the largest possible value of a? Solution A number is divisible by 6 if it is both divisible by 2 and divisible by 3. First, a number if … Continue reading

Posted in Grade 5-6, Problem of the Week | Tagged , , , | Leave a comment