Least Common Multiples

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Presentation transcript:

Least Common Multiples

What is the LCM of 2 and 6? Multiples of 2: 2,4, ,8,10,12,14,16… 6 2,4, ,8,10,12,14,16… 6 Multiples of 6: 6 ,12,18,24,30,36,42… Least Common Multiple: 6 The LCM of 2 and 6 is 6

What is the LCM of 2 and 8? 2,4,6, ,10,12,14,16,18,… 8 Multiples of 2: 2,4,6, ,10,12,14,16,18,… 8 Multiples of 2: Multiples of 8: ,16,24,32,40,48,56,… 8 Least Common Multiple: 8 The LCM of 2 and 8 is 8

What is the LCM of 8 and 20? Multiples of 8: 8,16,24,32, ,48,56,64… 40 8,16,24,32, ,48,56,64… 40 Multiples of 20: 20, ,60,80,100,120… 40 Least Common Multiple: 40 The LCM of 8 and 20 is 40

What is the LCM of 4 and 9? Multiples of 4: 4,8,12,16,20,24,28,32,36 9,18,27,36,45,54,63… Least Common Multiple: 36 The LCM of 4 and 9 is 36