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Q: What is a factor tree and how do you know when it is complete?

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A factor tree isn't complete until all the factors are prime. If any of the factors are composite, you know the factor tree is not complete.

A Factor tree is when you put your number there and then find what makes that answer, you know it is done when you have all prime numbers. ~6th grader @ Celia Hays Elementary

A factor tree is a way to notate the process of finding the prime factorization of a given number. A factor tree is complete when the bottom branch (row) consists entirely of prime numbers.

21

no it does not matter what two factors you select to complete a factor tree (i just learned that today in class :D)

873 x 29Since both 3 and 29 are prime numbers, the factor tree is complete.

A factor tree is a representation of the process of finding the prime factorization of a given number. It's complete when the bottom branch consists entirely of prime numbers.

A factor tree of 78: 78 6 x 13 (2x3) x 13 Since 2, 3, and 13 are prime numbers, the factor tree is complete.

When the bottom branch is all prime numbers.

you use a factor tree

253 11 x 23 Both 11 and 23 are prime numbers, so the factor tree is complete.

133 7 x 19 Both 7 and 19 are prime numbers, so the factor tree is complete.

Yes. Factors that complete a factor tree need to be prime. However, it doesn't matter what two factors you select to start a factor tree.

125 5 x 25 5 x (5x5) Since 5 is a prime number, the factor tree is complete.

62525 x 25(5x5) x (5x5)Since 5 is a prime number, the factor tree is complete.625125,525,5,55,5,5,5

Probably 5, since it is the largest prime factor.

24 6 x 4 (2x3) x (2x2) Since 2 and 3 are prime numbers, the factor tree is complete.

54 6 x 9 (2x3) x (3x3) Since 2 and 3 are prime numbers, the factor tree is complete.

242 2 x 121 2 x (11x11) Since 2 and 11 are prime numbers, the factor tree is complete.

52 4 x 13 (2x2) x 13 Since 2 and 13 are prime numbers, the factor tree is complete.

78 6 x 13 (2x3) x 13 Since 2, 3, and 13 are prime numbers, the factor tree is complete.

710 10 x 71 (2x5) x 71 Since 2, 5, and 71 are prime numbers, the factor tree is complete.

When the bottom row consists of all prime numbers.

Not particularly, as long as they are prime.

dont know you find out brainy