Q: How do I use area models to find factor pairs?

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Divide 1, 2, 3, 4 and 6 into 36. The answers are the other halves of the factor pairs.

Factor pairs are just the factors of a number listed in a different way. The factors of 20 are 1, 2, 4, 5, 10, 20 The factor pairs of 20 are (20,1)(10,2)(5,4)

You find a factor pair take the number that you want to find the factor pair of and divide it by a number. If the answer come out evenly then that's your factor pair EX. Factor pairs of 150 1 and 150 2 and 75 3 and 50 5 and 30 6 and 25 10 and 15

Between 35 and 40, 36 has the most factor pairs.

10 and 15

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I am not sure what you mean with "area models". As for an array, one simple way to use it is to try out different factors in a loop; every time you find a factor, you write the factor to the next array element.

yes

84 factor is

Divide 1, 2, 3, 4 and 6 into 36. The answers are the other halves of the factor pairs.

100 and 7

12 has three factor pairs, six if you count their negative counterparts.

Factor pairs are just the factors of a number listed in a different way. The factors of 20 are 1, 2, 4, 5, 10, 20 The factor pairs of 20 are (20,1)(10,2)(5,4)

You find a factor pair take the number that you want to find the factor pair of and divide it by a number. If the answer come out evenly then that's your factor pair EX. Factor pairs of 150 1 and 150 2 and 75 3 and 50 5 and 30 6 and 25 10 and 15

Divide by 5. (65,1)(13,5)

Between 35 and 40, 36 has the most factor pairs.

Factors come in pairs. If you know one factor, divide it into the number. The answer will be another factor.

Apart from [1,201], [3,67] is the only other factor pair. Since both 3 and 67 are prime numbers, you know you won't be able to find any more factor pairs.