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 A number such as 6 has 4 factors, shown in pairs on the legs of this factor spider.

 

1 x 6 and 2 x 3 both equal 6.

 

Factor spider 6

 

 

The number 12 has 6 factors, shown on the legs of this factor spider.

 

Factor spider 12

 

Look at the factor spider for the number 9, which has 3 factors.

Note that the factor 3 should only be counted once.

 

Factor spider 9

10 questions