# For Finding Factors Fast (2 of 2)

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Write all the factors for the numbers below (the first one is done for you):

 6 1 2 3 6 8 1 2 4 8 10 1 2 5 10 16 1 2 4 8 16 20 1 2 4 5 10 20 21 1 3 7 21 32 1 2 4 8 16 32

Fill in the missing factors below:

 12 1 2 3 4 6 12 18 1 2 3 6 9 18 30 1 2 3 5 6 10 15 30 40 1 2 4 5 8 10 20 40 63 1 3 7 9 21 63 80 1 2 4 5 8 10 16 20 40 80

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### Related Resources

The various resources listed below are aligned to the same standard, (4OA04) taken from the CCSM (Common Core Standards For Mathematics) as the Factors and multiples Worksheet shown above.

Find all factor pairs for a whole number in the range 1 to 100. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range 1 to 100 is a multiple of a given one-digit number. Determine whether a given whole number in the range 1 to 100 is prime or composite.

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