GCD of 238, 421, 815, 642 Calculator

Given Input numbers are 238, 421, 815, 642

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

Divisors of 238 :

The positive integer divisors of 238 that completely divides 238 are.

1, 2, 7, 14, 17, 34, 119, 238

Divisors of 421 :

The positive integer divisors of 421 that completely divides 421 are.

1, 421

Divisors of 815 :

The positive integer divisors of 815 that completely divides 815 are.

1, 5, 163, 815

Divisors of 642 :

The positive integer divisors of 642 that completely divides 642 are.

1, 2, 3, 6, 107, 214, 321, 642

GCD of numbers is the greatest common divisor

So, the GCD (238, 421, 815, 642) = 1.

Given numbers are 238, 421, 815, 642

The list of prime factors of all numbers are

Prime factors of 238 are 2 x 7 x 17

Prime factors of 421 are 421

Prime factors of 815 are 5 x 163

Prime factors of 642 are 2 x 3 x 107

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

Given numbers are 238, 421, 815, 642

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

Apply this formula for all numbers.

Step1:

LCM(238, 421) = 100198

GCD(238, 421) = ( 238 x 421 ) / 100198

= 238 / 421

= 238

Step2:

LCM(1, 815) = 815

GCD(1, 815) = ( 1 x 815 ) / 815

= 1 / 815

= 1

Step3:

LCM(1, 642) = 642

GCD(1, 642) = ( 1 x 642 ) / 642

= 1 / 642

= 1

So, Greatest Common Divisor of 238, 421, 815, 642 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 571, 823, 181, 270
• GCD of 949, 603, 631, 708
• GCD of 808, 285, 416, 884
• GCD of 173, 906, 714, 565
• GCD of 366, 627, 236, 108

Given numbers are 238, 421, 815, 642
The greatest common divisor of numbers 238, 421, 815, 642 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 238, 421, 815, 642 is 1.

1. What is the GCD of 238, 421, 815, 642?

GCD of given numbers 238, 421, 815, 642 is 1

2. How to calculate the greatest common divisor of 238, 421, 815, 642?

We can find the highest common divisor of 238, 421, 815, 642 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 238, 421, 815, 642 i.e 1.

3. How can I use the GCD of 238, 421, 815, 642Calculator?

Out the numbers 238, 421, 815, 642 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.