# What prime factors do 15 and 35 have in common?

5

### What is the common factor of 27 and 35?

The factors of 35 are 1, 5, 7, and 35. The factors of 27 are 1, 3, 9, and 27. The only factor they have in common is 1; therefore, 35 and 27 are relatively prime. Alternatively, you can look at the prime factors. The prime factors of 35 are 5 and 7. The prime factors of 27 are 3, 3, and 3. They have no prime factors in common, so they are relatively prime…

### What is the greatest common factor of 35 and 81?

The factors of 35 are 1, 5, 7, and 35. The factors of 81 are 1, 3, 9, 27, and 81. The only factor they have in common is 1. Therefore, 1 is the greatest common factor. This means that 35 and 81 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 35 are 5 and 7. The prime…

### What is the greatest common factor of 21 30 and 35?

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 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The factors of 35 are 1, 5, 7, and 35. There is only one common factor: 1. Therefore, the greatest common factor is 1. The greatest common factor can also be…

### What are the factors and prime factors of 105?

105 is a composite number because it has factors other than 1 and itself. It is not a prime number. The 8 factors of 105 are 1, 3, 5, 7, 15, 21, 35, and 105. The factor pairs of 105 are 1 x 105, 3 x 35, 5 x 21, and 7 x 15. The proper factors of 105 are 1, 3, 5, 7, 15, 21, and 35 or, if the definition you are using…

### What is the greatest common factor of 90 and 105?

The GCF of 90 and 105 is 5. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The factors of 105 are 1, 3, 5, 7, 15, 21, 35, and 105. The common factors are 1, 3, 5, and 15. Therefore, the greatest common factor is 15. The greatest common factor can also be determined from the prime factors, multiplying the common prime factors together. The…

### What is the greatest common factor of 35 and 75?

Answer: The greatest common factor of 35 and 75 is 5. The common factors of 35 and 75 are 1 and 5. Definition: A factor is a divisor - a number that will evenly divide into another number. The common factors of two or more numbers are all the factors that the numbers have in common. The greatest common factor of two or more numbers is the largest factor that the numbers have in common…

### What is the greatest common factor of 35 and 77?

The GCF of 35 and 77 is 7 One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 35 are 1, 5, 7, and 35. The factors of 77 are 1, 7, 11, and 77. The common factors are 1 and 7. Therefore, the greatest common factor is 7. The greatest common factor can also be calculated by identifying the common prime…

### What is the greatest common factor of 28n and 35?

The prime factors of 28n are 2, 2, 7, and n. The prime factors of 35 are 5 and 7. The common prime factor that is known is 7. If n is 5 or a multiple of 5, the common prime factors are 5 and 7. There are two possibilities: - If n is not 5 or a multiple of 5, the greatest common factor is 7. - If n is 5 or a multiple…

### What are the factors and prime factors of 735?

735 is a composite number because it has factors other than 1 and itself. It is not a prime number. The 12 factors of 735 are 1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, and 735. The proper factors of 735 are 1, 3, 5, 7, 15, 21, 35, 49, 105, 147, and 245 or, if the definition you are using excludes 1, they are 3, 5, 7, 15, 21, 35, 49…

### What are the factors and prime factors of 1155?

1155 is a composite number because it has factors other than 1 and itself. It is not a prime number. The 16 factors of 1155 are 1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, and 1155. The proper factors of 1155 are 1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, and 385 or, if the definition you are using excludes 1, they…