[All Roads Lead to Rome] Lowest Common Multiple

Find the lowest common multiple (LCM) of the following numbers: 216, 36 and 135

Method 1: Listing

> Which part of the working needs to be improved?

Method 2: Circle Common Factors

> What's wrong with this presentation?


Method 3: Long Combined Division

> Which part of the working needs to be improved?

Method 4: Using Index Notation

> Which part of this working is not correctly presented?

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