Mammoth Memory

Lowest common multiple (LCM)

We know         Lowest = Smallest number

Common = Anything the same

  Multiple = Multiplcation table

 

Multiple here is short for
Multiplication tables 

So logically

Lowest common multiple is

LCM - The smallest number
                     what they have in common
                   from multiplication tables

Example 1

What is the lowest common multiple of the two numbers 3 and 4?

 

Lowest common multiple:

  1. The smallest number
  2. What they have in common
  3. From multiplication tables

 

Multiplcation tables

The lowest common multiple of 3 and 4 is 12

What they have in common are:

12 and 24

The smallest number is 12.

 

Answer:

The lowest common multiple of the two numbers 3 and 4 is 12.

 

Example 2

What is the lowest common multiple of the two numbers 6 and 8?

 

Lowest common multiple:

  1. The smallest number
  2. What they have in common
  3. From multiplication tables

 

Multiplcation tables

The lowest common multiple of 6 and 8 is 24 

What they have in common are:

24 and 48

The smallest number is 24.

 

Answer:

The lowest common multiple of the two numbers 6 and 8 is 24.

 

Example 3

What is the lowest common multiple of the two numbers 18 and 12?

 

Lowest common multiple:

  1. The smallest number
  2. What they have in common
  3. From multiplication tables

 

Multiplcation tables

The lowest common multiple of 12 and 18 is 36

What they have in common is:

36 and 72

The smallest number is 36.

 

Answer:

The lowest common multiple of the two numbers 18 and 12 is 36.

More Info