GCD of 128, 998, 702, 644 Calculator

Given Input numbers are 128, 998, 702, 644

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

Divisors of 128 :

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

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

Divisors of 998 :

The positive integer divisors of 998 that completely divides 998 are.

1, 2, 499, 998

Divisors of 702 :

The positive integer divisors of 702 that completely divides 702 are.

1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702

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

GCD of numbers is the greatest common divisor

So, the GCD (128, 998, 702, 644) = 2.

Given numbers are 128, 998, 702, 644

The list of prime factors of all numbers are

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

Prime factors of 998 are 2 x 499

Prime factors of 702 are 2 x 3 x 3 x 3 x 13

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

The highest common occurrence is 2¹

Therefore, GCD of 128, 998, 702, 644 is 2.

Given numbers are 128, 998, 702, 644

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

Apply this formula for all numbers.

Step1:

LCM(128, 998) = 63872

GCD(128, 998) = ( 128 x 998 ) / 63872

= 128 / 998

= 128

Step2:

LCM(2, 702) = 702

GCD(2, 702) = ( 2 x 702 ) / 702

= 2 / 702

= 2

Step3:

LCM(2, 644) = 644

GCD(2, 644) = ( 2 x 644 ) / 644

= 2 / 644

= 2

So, Greatest Common Divisor of 128, 998, 702, 644 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 514, 765, 456, 679
• GCD of 163, 894, 907, 687
• GCD of 152, 939, 521, 906
• GCD of 551, 154, 411, 903
• GCD of 646, 332, 288, 830

Given numbers are 128, 998, 702, 644
The greatest common divisor of numbers 128, 998, 702, 644 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 128, 998, 702, 644 is 2.

1. What is the GCD of 128, 998, 702, 644?

GCD of given numbers 128, 998, 702, 644 is 2

2. How to calculate the greatest common divisor of 128, 998, 702, 644?

We can find the highest common divisor of 128, 998, 702, 644 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 128, 998, 702, 644 i.e 2.

3. How can I use the GCD of 128, 998, 702, 644Calculator?

Out the numbers 128, 998, 702, 644 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.