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What are the common factors and greatest common factor of 45 and 105?
Wiki User
∙ 12y ago
You need to find work out the factors of both 45 and 105 separately, and then find which match both numbers.
45 - 1, 3, 5, 9, 15, 45
105 - 1, 3, 5, 7, 15, 21, 35, 105
The numbers that match both 45 and 105 are 1, 3, 5, and 15.
15 would therefore be called the Greatest Common Factor (GCF).
Wiki User
∙ 12y ago
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What is the greatest common factor of 42 and 105?
A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that both numbers have in common.One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.The factors of 105 are 1, 3, 5, 7, 15, 21, 35, and 105.The common factors are 1, 3, 7, and 21. Therefore, the greatest common factor is 21.The GCF of 42 and 105 is 21
What is the greatest common factor of 70 and 105?
Answer: 35Definition: A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Method:One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 70 are 1, 2, 5, 7, 10, 14, 35, and 70.The factors of 105 are 1, 3, 5, 7, 15, 21, 35, and 105.The common factors are 1, 5, 7, and 35. Therefore, the greatest common factor is 35.
What is the greatest common factor of 105 and 132?
The greatest common factor of 105 and 132 is 3.
What is the greatest common factor of 12 21 and 105?
Answer: 3Definition: A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Method:One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 12 are 1, 2, 3, 4, 6, and 12.The factors of 21 are 1, 3, 7, and 21.The factors of 105 are 1, 3, 5, 7, 15, 21, 35, and 105.The common factors are 1 and 3. Therefore, the greatest common factor is 3.
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 prime factors of 90 are 2, 3, 3, and 5. The prime factors of 105 are 3, 5, and 7. The common prime factors are 3 and 5, so the greatest common factor is 3 x 5 = 15.
What are the greatest common factors of 75 90 and 105?
The greatest common factor is 15.
What is the greatest common factors of 25 35 and 105?
The greatest common factor is five.
What are the greatest common factors in 42 112 and 105?
The greatest common factor is seven.
What is the greatest common factor of 42 and 105?
A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that both numbers have in common.One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.The factors of 105 are 1, 3, 5, 7, 15, 21, 35, and 105.The common factors are 1, 3, 7, and 21. Therefore, the greatest common factor is 21.The GCF of 42 and 105 is 21
What is the greatest common factor of 70 and 105?
Answer: 35Definition: A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Method:One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 70 are 1, 2, 5, 7, 10, 14, 35, and 70.The factors of 105 are 1, 3, 5, 7, 15, 21, 35, and 105.The common factors are 1, 5, 7, and 35. Therefore, the greatest common factor is 35.
What is the greatest common factor of 105 and 125?
The factors of 105 are:1, 3, 5, 7, 15, 21, 35, 105The factors of 125 are:1, 5, 25, 125The common factors are: 1, 5The Greatest Common Factor (GCF) is: 5
What is the greatest common factor of 91 and 105?
The greatest common factor of 91 , 105 = 7
What is the greatest common factor of 15 and 105?
The greatest common factor of 15 and 105 is 15.
Greatest Common Factor of 84 and 105?
The greatest common factor of 84 and 105 is 21.
What is the greatest common factor of 105 and 132?
The greatest common factor of 105 and 132 is 3.
What is the greatest common factor of 80 and 105?
The greatest common factor of 80 and 105 is 5.
What is the greatest common factor of 102 and 105?
The greatest common factor of 102 and 105 is 3.
