No, you should continue checking for factor pairs even if you find a pair that repeats. A repeating pair indicates that the number is not a Prime number, but there may be other factor pairs that have not been identified yet. It is important to exhaust all possible factor pairs to ensure that all factors of the number are identified accurately.
12 has three factor pairs, six if you count their negative counterparts.
Divide by 5. (65,1)(13,5)
yes
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.
Explaining how to find all factors pairs of 40 is easy. All you have to do is find which whole numbers 40 can be divided into.
84 factor is
100 and 7
Divide 1, 2, 3, 4 and 6 into 36. The answers are the other halves of the factor pairs.
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)
Please give me the answer
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.
yes
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.