GCD of 388, 266, 646, 478 Calculator

Given Input numbers are 388, 266, 646, 478

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

Divisors of 388 :

The positive integer divisors of 388 that completely divides 388 are.

1, 2, 4, 97, 194, 388

Divisors of 266 :

The positive integer divisors of 266 that completely divides 266 are.

1, 2, 7, 14, 19, 38, 133, 266

Divisors of 646 :

The positive integer divisors of 646 that completely divides 646 are.

1, 2, 17, 19, 34, 38, 323, 646

Divisors of 478 :

The positive integer divisors of 478 that completely divides 478 are.

1, 2, 239, 478

GCD of numbers is the greatest common divisor

So, the GCD (388, 266, 646, 478) = 2.

Given numbers are 388, 266, 646, 478

The list of prime factors of all numbers are

Prime factors of 388 are 2 x 2 x 97

Prime factors of 266 are 2 x 7 x 19

Prime factors of 646 are 2 x 17 x 19

Prime factors of 478 are 2 x 239

The highest common occurrence is 2¹

Therefore, GCD of 388, 266, 646, 478 is 2.

Given numbers are 388, 266, 646, 478

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

Apply this formula for all numbers.

Step1:

LCM(388, 266) = 51604

GCD(388, 266) = ( 388 x 266 ) / 51604

= 388 / 266

= 388

Step2:

LCM(2, 646) = 646

GCD(2, 646) = ( 2 x 646 ) / 646

= 2 / 646

= 2

Step3:

LCM(2, 478) = 478

GCD(2, 478) = ( 2 x 478 ) / 478

= 2 / 478

= 2

So, Greatest Common Divisor of 388, 266, 646, 478 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 220, 469, 773, 468
• GCD of 265, 767, 496, 793
• GCD of 316, 331, 911, 631
• GCD of 554, 635, 365, 660
• GCD of 672, 543, 878, 398

Given numbers are 388, 266, 646, 478
The greatest common divisor of numbers 388, 266, 646, 478 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 388, 266, 646, 478 is 2.

1. What is the GCD of 388, 266, 646, 478?

GCD of given numbers 388, 266, 646, 478 is 2

2. How to calculate the greatest common divisor of 388, 266, 646, 478?

We can find the highest common divisor of 388, 266, 646, 478 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 388, 266, 646, 478 i.e 2.

3. How can I use the GCD of 388, 266, 646, 478Calculator?

Out the numbers 388, 266, 646, 478 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.