How many numbers below are factors of other numbers in the table?
9  8  43  41 
37  25  9  8 
9  6  24  8 
How many numbers above are multiples of other numbers in the table?
Topics: Starter  Factors  Number
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Previous Day  This starter is for 30 July  Next Day
9  8  43  41 
37  25  9  8 
9  6  24  8 
9 is a factor of 9
8 is a factor of 8
9 is a factor of 9
8 is a factor of 8
9 is a factor of 9
6 is a factor of 24
8 is a factor of 8
Number of Multiples = 7
9  8  43  41 
37  25  9  8 
9  6  24  8 
9 is a multiple of 9
8 is a multiple of 8
9 is a multiple of 9
8 is a multiple of 8
9 is a multiple of 9
24 is a multiple of 8
8 is a multiple of 8
Change Numbers: 

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While factors are in mind follow this URL to a student version of the Sieve of Eratosthenes.