Six could be divided into two further factors of 2 and 3. If twelve was first divided into the factors 3 and 4, the four could be divided into factors of 2 and 2. There are several clues to help determine factors. If none of the rules apply, there still may be factors of 3 or 7 or some other number. You have correct and incorrect.
Extra time is awarded for each correct answer.
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