Greatest common factor and least common multiple
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The document defines and provides examples of calculating the greatest common factor (GCF) and least common multiple (LCM) of two numbers. It explains that the GCF is the largest factor that is common to both numbers, using 16 and 12 as an example. The LCM is the smallest multiple that is common to both numbers, demonstrated with the multiples of 3 and 7. The document concludes that GCF and LCM word problems will be covered next.
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Greatest common factor and least common multiple
- 2. Greatest Common Factor List the factors of 2 numbers, 16 and 12 16: 1,2,4,8,16 12: 1,2,3,4,6,12 Which factors do they have in common? 1,2,4 are common Factors What is the largest factor? 4
- 3. Least Common Multiple List the Multiples of 3 and 7 3,6,9,12,15,18,21,24,27,30,33,36,39,42 7,14,21,28,35,42 What multiple do 3 and 7 have in common? 21 and 42 Which multiple is the smallest? 21 is the least common multiple
- 4. GCF Now you know what Greatest Common Factor is! Next up GCF Word Problem!s
- 5. LCM Now you know what Least Common Multiple is! Next up LCM word problems!