GCD of 644, 428, 86, 976 Calculator

Given Input numbers are 644, 428, 86, 976

In the factoring method, we have to find the divisors of all numbers

Divisors of 644 :

The positive integer divisors of 644 that completely divides 644 are.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 428 :

The positive integer divisors of 428 that completely divides 428 are.

1, 2, 4, 107, 214, 428

Divisors of 86 :

The positive integer divisors of 86 that completely divides 86 are.

1, 2, 43, 86

Divisors of 976 :

The positive integer divisors of 976 that completely divides 976 are.

1, 2, 4, 8, 16, 61, 122, 244, 488, 976

GCD of numbers is the greatest common divisor

So, the GCD (644, 428, 86, 976) = 2.

Given numbers are 644, 428, 86, 976

The list of prime factors of all numbers are

Prime factors of 644 are 2 x 2 x 7 x 23

Prime factors of 428 are 2 x 2 x 107

Prime factors of 86 are 2 x 43

Prime factors of 976 are 2 x 2 x 2 x 2 x 61

The highest common occurrence is 2¹

Therefore, GCD of 644, 428, 86, 976 is 2.

Given numbers are 644, 428, 86, 976

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(644, 428) = 68908

GCD(644, 428) = ( 644 x 428 ) / 68908

= 644 / 428

= 644

Step2:

LCM(4, 86) = 172

GCD(4, 86) = ( 4 x 86 ) / 172

= 4 / 86

= 4

Step3:

LCM(2, 976) = 976

GCD(2, 976) = ( 2 x 976 ) / 976

= 2 / 976

= 2

So, Greatest Common Divisor of 644, 428, 86, 976 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 947, 322, 81, 354
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• GCD of 629, 569, 76, 389
• GCD of 857, 373, 28, 424
• GCD of 597, 823, 32, 232

Given numbers are 644, 428, 86, 976
The greatest common divisor of numbers 644, 428, 86, 976 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 644, 428, 86, 976 is 2.

1. What is the GCD of 644, 428, 86, 976?

GCD of given numbers 644, 428, 86, 976 is 2

2. How to calculate the greatest common divisor of 644, 428, 86, 976?

We can find the highest common divisor of 644, 428, 86, 976 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 644, 428, 86, 976 i.e 2.

3. How can I use the GCD of 644, 428, 86, 976Calculator?

Out the numbers 644, 428, 86, 976 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.