Do you know the least common multiple of 23 and 3?

Learning Intention: We are learning to develop our number knowledge.
Success Criteria: I know I can do this when I explain the least common multiple is the lowest multiple that you get between two digits.

Hmmm, what's the greatest common factor for these two numbers?

Learning intention: We are learning to understand the greatest common factor.
Success criteria: I know I can do this when I explain how to find the greatest common factor by first working out the factors for each set of numbers.