M3.1.3 For the adult
Multiples and factors
Which numbers share out 36 exactly, with nothing left over?
What this chapter teaches
A factor divides into a number with nothing left over, and factors come in pairs. A multiple is a number in the times table. A common multiple is in two times tables at once.
Three questions to ask
There is no one right wording. Listen for the idea.
- Which numbers share 36 stones out into equal rows?
- What are the first five multiples of 6?
- What is the smallest number in both the 4 times table and the 6 times table?
After the chapter, the learner can
- List the factors of 36 in pairs
- Find common multiples of 4 and 6
What they copy into their notebook
Factors divide a number exactly and come in pairs: 36 = 4 × 9. Multiples are the times table: 4, 8, 12. Common multiples are in two lists, like 12 and 24 for 4 and 6.