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What are the common factors of 45 that are prime?
The prime factors of 45 are 3 and 5.
What is the greatest common factor of 10 and 45?
The GCF of 10 and 45 is 5 The factors of 10 are 1, 2, 5, and 10. The factors of 45 are 1, 3, 5, 9, 15, and 45. The largest factor they have in common is 5, so 5 is the greatest common factor. Or, you can use prime factors. The prime factors of 10 are 2 and 5. The prime factors of 45 are 3, 3, and 5. The prime factors they have in common are a single 5, so 5 is the greatest common factor.
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 32 and 45?
The GCF of 32 and 45 is 1. One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 32 are 1, 2, 4, 8, 16, and 32. The factors of 45 are 1, 3, 5, 9, 15, and 45. The common factors are 1. Therefore, 1 is the greatest common factor, which means they are relatively prime. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 32 are 2, 2, 2, 2, and 2. The prime factors of 45 are 3, 3, and 5. They have no prime factors in common, so they are relatively prime.
What is the greatest common factor of 21 and 45?
The GCF of 21 and 45 is 3. One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 21 are 1, 3, 7, and 21. The factors of 45 are 1, 3, 5, 9, 15, and 45. The common factors are 1 and 3. Therefore, the greatest common factor is 3. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 21 are 3 and 7. The prime factors of 45 are 3, 3, and 5. The prime factors in common are a single 3, so the greatest common factor is 3.
What are the common prime factors of 45 and 108?
Just 3.
What is the greatest common factor of 8 and 45?
The greatest common factor of 8 and 45 is 1. The numbers 8 and 45 have no prime factors in common.
What is the least common multiple of 32 and 45?
The LCM of 32 and 45 is 1440. 32 and 45 have no common factors. We call this relatively prime. When you have relatively prime numbers, their LCM is their product.Since 32 and 45 share no common factors, the LCM would be 32*45 = 1440.
What is the greatest common factor of 45 and 76?
One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 45 are 1, 3, 5, 9, 15, and 45.The factors of 76 are 1, 2, 4, 19, 38, and 76.The common factors are a single 1. Therefore, the greatest common factor is 1, which means the numbers are relatively prime.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 45 are 3, 3, and 5.The prime factors of 76 are 2, 2, and 19.There are no prime factors in common, so the numbers are relatively prime, which means the greatest common factor is 1.The GCF of 45 and 76 is 1. 45 and 76 have no factors in common aside from 1. However, this is unhelpful for simplification.
Is 3 the greatest common factor of 27 and 45?
No. Prime factors of 27: 3 3 3 Prime factors of 45: 3 3 5 Both have two factors of 3, so the greatest common factor is 9.
What are the factors and prime factors of 45?
45 is a composite number; it has factors other than 1 and itself. It is not a prime number.The 6 factors of 45 are 1, 3, 5, 9, 15, and 45.The factor pairs of 45 are 1 x 45, 3 x 15, and 5 x 9.The proper factors of 45 are 1, 3, 5, 9, and 15 orif the definition you are using excludes 1, they are 3, 5, 9, and 15.The prime factors of 45 are 3, 3, and 5.Note: There is repetition of these factors, so if the prime factors are being listed instead of the prime factorization, usually only the distinct prime factors are listed.The 2 distinct prime factors (listing each prime factor only once) of 45 are 3 and 5.The prime factorization of 45 is 3 x 3 x 5 or, in index form (in other words, using exponents), 32 x 5.NOTE: There cannot be common factors, a greatest common factor, or a least common multiple of a single number because "common" refers to factors or multiples that two or more numbers have in common.How to find the prime factors: A factor tree of 45:45/ \5 9/ \3 3Answer: 5*3*3 or 5*32
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.
