GCF of 64 and 40

What is the GCF of 64 and 40?

GCF of 64 and 40

is 8

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Greatest Common Factor

What is the Greatest Common Factor of 64 and 40? 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 64 and 40 using those formula above, step by step instructions are given below

Prime Factorization Method:

  1. Find the prime factors of the first number 64.
    2, 2, 2, 2, 2, 2
  2. Find the prime factors of the second number 40.
    2, 2, 2, 5
  3. Multiply of all the common prime factors is the GCF value. Which is,
    8

Factors Method:

  1. Find the factors of the first number 64.
    1, 2, 4, 8, 16, 32, 64
  2. Find the factors of the second number 40.
    1, 2, 4, 5, 8, 10, 20, 40
  3. The biggest common factor number is the GCF value. Which is,
    8

Number GCF LCM
64 & 35 1 2240
64 & 36 4 576
64 & 37 1 2368
64 & 38 2 1216
64 & 39 1 2496
64 & 40 8 320
64 & 41 1 2624
64 & 42 2 1344
64 & 43 1 2752
64 & 44 4 704
64 & 45 1 2880

GCF (Greatest Common Factor) of 64 and 40 is 8.

GCD (Greatest Common Divisor) of 64 and 40 is 8.

HCF (Highest Common Factor) of 64 and 40 is 8.
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