Q: What is the prime factorization of 27 using the ladder method?

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As a product of its prime factors: 2*3*3*7 = 126

ladder method

*)1 3)3 3)9 2)18 2)36 2)72 The prime factorization of 72 is 2 x 2 x 2 x 3 x 3.

It is: 2*2*7 = 28

It is: 2*5*5*5 = 250

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As a product of its prime factors: 2*3*3*7 = 126

ladder method

31 is already prime; no method required.

*)1 3)3 3)9 2)18 2)36 2)72 The prime factorization of 72 is 2 x 2 x 2 x 3 x 3.

139 is already prime; no factorization required.

ewan

145 5,29

it is fast and easy

It is: 7*7 = 49

*)1 5)5 3)15 2)30 The prime factorization of 30 is 2 x 3 x 5.

The concept of "prime factorization" is used for integers. It doesn't make sense to use it for fractions or decimals.

2, 5 and 7