Multiples. What are Multiples? A list of multiples for a particular number are that number’s times table.

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Presentation transcript:

Multiples

What are Multiples? A list of multiples for a particular number are that number’s times table.

What are Multiples? A list of multiples for a particular number are that number’s times table. EG the list of multiples for 4 would be:

What are Multiples? A list of multiples for a particular number are that number’s times table. EG the list of multiples for 4 would be: 4, 8, 12, 16, 20, 24, 28, 32, …

EG List the first 10 multiples of 2 and 3.

2, 4, 6, 8, 10, 12, 14, 16, 18, 20 3, 6, 9, 12, 15, 18, 21, 24, 27, 30

EG List the first 10 multiples of 2 and 3. 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 Notice some of the numbers are in both lists, these are common multiples

Lowest Common Multiple As the name suggests, this is the smallest number in the list of common multiples.

Lowest Common Multiple EG Find the LCM for 4 and 6.

Lowest Common Multiple EG Find the LCM for 4 and 6. List the multiples of each:

Lowest Common Multiple EG Find the LCM for 4 and 6. List the multiples of each: 4, 8, 12, 16, 20, 24, 28, 32, 36, … 6, 12, 18, 24, 30, 36, 42, 48, 54, …

Lowest Common Multiple EG Find the LCM for 4 and 6. List the multiples of each: 4, 8, 12, 16, 20, 24, 28, 32, 36, … 6, 12, 18, 24, 30, 36, 42, 48, 54, … List the common multiples:

Lowest Common Multiple EG Find the LCM for 4 and 6. List the multiples of each: 4, 8, 12, 16, 20, 24, 28, 32, 36, … 6, 12, 18, 24, 30, 36, 42, 48, 54, … List the common multiples: 12, 24, 36, …

Lowest Common Multiple EG Find the LCM for 4 and 6. List the multiples of each: 4, 8, 12, 16, 20, 24, 28, 32, 36, … 6, 12, 18, 24, 30, 36, 42, 48, 54, … List the common multiples: 12, 24, 36, …so LCM(4,6)=12