Factorising examples
Example 1
Factor the number 12
Write down the number and put two ladders up against it.
Then write the numbers from 1 down the left ladder.
Now fill the right ladder with the numbers that multiply to give 12.
Therefore the factors of 12 are:
1 and 12
2 and 6
3 and 4
Alternatively the factors of 12 are 1, 2, 3, 4, 6 and 12
Example 2
Factor the number 15
Therefore
And
Therefore the factors of 15 are:
1 and 15
3 and 5
Alternatively the factors of 15 are 1, 3, 5 and 15.
Example 3
Factor the number 6
Therefore
And
Therefore the factors of 6 are:
1 and 6
2 and 3
Alternatively the factors of 6 are: 1, 2, 3 and 6.
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