GCD of 228, 128, 988, 645 Calculator

Given Input numbers are 228, 128, 988, 645

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

Divisors of 228 :

The positive integer divisors of 228 that completely divides 228 are.

1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228

Divisors of 128 :

The positive integer divisors of 128 that completely divides 128 are.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 988 :

The positive integer divisors of 988 that completely divides 988 are.

1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988

Divisors of 645 :

The positive integer divisors of 645 that completely divides 645 are.

1, 3, 5, 15, 43, 129, 215, 645

GCD of numbers is the greatest common divisor

So, the GCD (228, 128, 988, 645) = 1.

Given numbers are 228, 128, 988, 645

The list of prime factors of all numbers are

Prime factors of 228 are 2 x 2 x 3 x 19

Prime factors of 128 are 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime factors of 988 are 2 x 2 x 13 x 19

Prime factors of 645 are 3 x 5 x 43

The above numbers do not have any common prime factor. So GCD is 1

Given numbers are 228, 128, 988, 645

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

Apply this formula for all numbers.

Step1:

LCM(228, 128) = 7296

GCD(228, 128) = ( 228 x 128 ) / 7296

= 228 / 128

= 228

Step2:

LCM(4, 988) = 988

GCD(4, 988) = ( 4 x 988 ) / 988

= 4 / 988

= 4

Step3:

LCM(4, 645) = 2580

GCD(4, 645) = ( 4 x 645 ) / 2580

= 4 / 645

= 4

So, Greatest Common Divisor of 228, 128, 988, 645 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 353, 470, 422, 198
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• GCD of 872, 779, 515, 268
• GCD of 451, 622, 708, 224
• GCD of 505, 685, 586, 702

Given numbers are 228, 128, 988, 645
The greatest common divisor of numbers 228, 128, 988, 645 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 228, 128, 988, 645 is 1.

1. What is the GCD of 228, 128, 988, 645?

GCD of given numbers 228, 128, 988, 645 is 1

2. How to calculate the greatest common divisor of 228, 128, 988, 645?

We can find the highest common divisor of 228, 128, 988, 645 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 228, 128, 988, 645 i.e 1.

3. How can I use the GCD of 228, 128, 988, 645Calculator?

Out the numbers 228, 128, 988, 645 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.