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What are all the common factors of 12 and 45?
The first step to finding the common prime factors is to list the prime factors of both numbers. For 12 and 45, the prime factors are: 12 = 2x2x3 45 = 3x3x5 The next step is to identify which prime factors are shared by both. In this case, both use a 3. Thus, 3 is the only common prime factor of 12 and 45.
What is the greatest common factor of 45 and 55?
The greatest common factor of 45 and 55 is 5 To determine GCF you first find the prime factors of each number. For 45 this is (5, 3, 3). For 55 this is (11, 5). Then you take the product of the prime factors that they have in common. In this case the only prime factor they have in common is 5 so the answer is just 5. For a better illustration of the rule look at 45 and 30. Prime factors of 45 are (5, 3, 3) Prime factors of 30 are (5, 3, 2) The prime factors in common are 5 and 3 and the product of these numbers is 15. Therefore the GCF of 45 and 30 is 15.
What are the prime numbers of 18 and 45?
Prime factors of 18 are 2 and 3 Prime factors of 45 are 3 and 5
Prime factor of 45 54?
There are two prime factors of 45, they are 3 and 5. The prime factors of 54 are 2 and 3.
What are the common factors of 35 and 45?
The common factors of 35 and 45 are: 1 and 5
