GCF of 85 and 51

What is the GCF of 85 and 51?


GCF of 85 and 51

is 17

Formula How to

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What is the Greatest Common Factor of 85 and 51? 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 85 and 51 using those formula above, step by step instructions are given below

Prime Factorization Method:

  1. Find the prime factors of the first number 85.
    5, 17
  2. Find the prime factors of the second number 51.
    3, 17
  3. Multiply of all the common prime factors is the GCF value. Which is,
    17

Factors Method:

  1. Find the factors of the first number 85.
    1, 5, 17, 85
  2. Find the factors of the second number 51.
    1, 3, 17, 51
  3. The biggest common factor number is the GCF value. Which is,
    17

GCF (Greatest Common Factor) of 85 and 51 is 17.

GCD (Greatest Common Divisor) of 85 and 51 is 17.

HCF (Highest Common Factor) of 85 and 51 is 17.

Number GCF LCM
85 & 46 1 3910
85 & 47 1 3995
85 & 48 1 4080
85 & 49 1 4165
85 & 50 5 850
85 & 51 17 255
85 & 52 1 4420
85 & 53 1 4505
85 & 54 1 4590
85 & 55 5 935
85 & 56 1 4760