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2. What are all the factors of 72? - Socratic

   socratic.org/questions/what-are-all-the-factors-of-72

   I know that 36 is divisible by 3 and 36 = 3xx12. This tells me that 72 = 2xx3xx12, so I know that 72 = 3xx2xx12 = 3xx24] color (blue) (3 xx 24) [Now we need to check 4. Up above, we got 72 = 2xx36 since 36 = 2xx18, we see that 72 = 2xx2xx18 = 4xx18] color (blue) (4 xx 18) [The next number to check is 5.

3. How do you find the prime factorization of 72? - Socratic

   socratic.org/questions/how-do-you-find-the-prime-factorization-of-72

   72 = 2^3xx3^2 Divide the number to be factored by the prime numbers in turn. Test that result is a natural number. If so, it is a prime factor. Continue until the factorisation is complete. In this example: 72 is even so 2 is a factor; 72/2 = 36 36 and 36/2 = 18 are also even so we have two more 2's as prime factors. 18/2 = 9 = 3xx3 Hence we have two 3's as prime factors. Therefore the prime ...

4. What are the factors of 24? - Socratic

   socratic.org/questions/what-are-the-factors-of-24

   Prealgebra Factors and Multiples Divisibility and Factors. 1 Answer Sarah C Apr 3, 2016 ...

5. What is the greatest common factor of 60 and 72? - Socratic

   socratic.org/questions/what-is-the-greatest-common-factor-of-60-and-72

   12 I like to answer these questions by first doing prime factorizations: 60=2xx30=2xx2xx15=2xx2xx3xx5 72=2xx36=2xx2xx18=2xx2xx2xx9=2xx2xx2xx3xx3 The GCF will have all the numbers that are common to both 60 and 72. GCF=? Let's start with 2's first. 60 has two 2s, while 72 has three. Two 2s are common to both, so our GCF will have two 2s: GCF=2xx2xx? Now 3s. 60 has one 3 and 72 has two 3s. One 3 ...

6. What are all the greatest common factors of 36 and 90?

   socratic.org/questions/what-are-all-the-greatest-common-factors-of-36-and-90

   Answer link. GCF = 18 Common factors: " " 1 , 2, 3, 6, 9, 18 There can be several common factors, but there is only one Greatest Common factor. Write 36 and 90 as the product of their prime factors. 36 = 2xx2xx3xx3 90= color (white) (xxx)2xx3xx3xx5 GCF =color (white) (x)2xx3xx3 color (white) (xxx) =18 As for all the common factors, it is ...

7. Prime Factorization - Prealgebra - Socratic

   socratic.org/prealgebra/factors-and-multiples/prime-factorization

   How can you simplify the following fraction using prime factorization?: 736 501. How can you simplify the following fraction using prime factorization?: 456 939. Which of the following numbers has the largest number of unique prime factors?: {1024, 36, 75, 70, 42} Which of the following numbers has the largest number of unique prime factors ...

8. How do you list all the factors of 70? - Socratic

   socratic.org/questions/how-do-you-list-all-the-factors-of-70

   List in their pairs. 1 & 70 2 & 35 5 & 14 7 & 10. I don't need to check between the numbers 10, 14, 35 and 70 because I have the factors in pairs.

9. How do you find all factors of 36? - Socratic

   socratic.org/questions/how-do-you-find-all-factors-of-36

   So the factors of 36 are the numbers that divide exactly into it. One way is to find what pairs of numbers multiply to give 36. 1 × 36 = 36. so 1 & 36 are factors. 2 × 18 = 36. 3 × 12 = 36. 4 × 9 = 36. 6 × 6 = 36. There are no more possible pairs so we have all the factors in question.

10. Use a factor tree to find the prime factors of 72. Write the...

    socratic.org/questions/use-a-factor-tree-to-find-the-prime-factors-of-72-write...

    You want to write #72# as the product (multiplication) of the factors which are all prime numbers. (Numbers such as #2,3,5,7,11,...) To use a factor tree ( also called the branch method), start with any two factors of #72# and then expand each until you get to a prime factor (they are shown in blue) #color(white)(wwwwwwwwwwww)72#

11. How do you find the greatest common factor of 39, 6? - Socratic

    socratic.org/questions/how-do-you-find-the-greatest-common-factor-of-39-6

    3 List all factors of each number: 39: 1,3, 13,39 6: 1,2,3,6 The only factor common to both numbers is 3.