GCF of 105 and 85

What is the GCF of 105 and 85?

GCF of 105 and 85

is 5

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Greatest Common Factor

What is the Greatest Common Factor of 105 and 85? The greatest common factor (GCF) of a set of numbers is the largest positive integer that divides each of the numbers evenly. It's also called the greatest common divisor (GCD).

The GCF can be found using a variety of methods, including prime factorization and division. The Euclidean algorithm is a commonly used method for finding the GCF of two numbers, and it can be extended to finding the GCF of more than two numbers.

To find GCF (Greatest Common Factor) between two numbers, mainly there are two methods available, Those are-

1. Prime Factorization Method: Find the prime factors of both number and then multiply of all the common prime factors value, you will get the GCF value.

2. Factors Method: Find the factors of both number. In those both factors the highest common factor number is the GCF value.

For calculation, here's how to calculate GCF of 105 and 85 using those formula above, step by step instructions are given below

Prime Factorization Method:

  1. Find the prime factors of the first number 105.
    3, 5, 7
  2. Find the prime factors of the second number 85.
    5, 17
  3. Multiply of all the common prime factors is the GCF value. Which is,
    5

Factors Method:

  1. Find the factors of the first number 105.
    1, 3, 5, 7, 15, 21, 35, 105
  2. Find the factors of the second number 85.
    1, 5, 17, 85
  3. The biggest common factor number is the GCF value. Which is,
    5

GCF (Greatest Common Factor) of 105 and 85 is 5.

GCD (Greatest Common Divisor) of 105 and 85 is 5.

HCF (Highest Common Factor) of 105 and 85 is 5.

Number GCF LCM
105 & 80 5 1680
105 & 81 3 2835
105 & 82 1 8610
105 & 83 1 8715
105 & 84 21 420
105 & 85 5 1785
105 & 86 1 9030
105 & 87 3 3045
105 & 88 1 9240
105 & 89 1 9345
105 & 90 15 630
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