GCD of 423, 638, 708, 220 Calculator

Given Input numbers are 423, 638, 708, 220

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

Divisors of 423 :

The positive integer divisors of 423 that completely divides 423 are.

1, 3, 9, 47, 141, 423

Divisors of 638 :

The positive integer divisors of 638 that completely divides 638 are.

1, 2, 11, 22, 29, 58, 319, 638

Divisors of 708 :

The positive integer divisors of 708 that completely divides 708 are.

1, 2, 3, 4, 6, 12, 59, 118, 177, 236, 354, 708

Divisors of 220 :

The positive integer divisors of 220 that completely divides 220 are.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220

GCD of numbers is the greatest common divisor

So, the GCD (423, 638, 708, 220) = 1.

Given numbers are 423, 638, 708, 220

The list of prime factors of all numbers are

Prime factors of 423 are 3 x 3 x 47

Prime factors of 638 are 2 x 11 x 29

Prime factors of 708 are 2 x 2 x 3 x 59

Prime factors of 220 are 2 x 2 x 5 x 11

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

Given numbers are 423, 638, 708, 220

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

Apply this formula for all numbers.

Step1:

LCM(423, 638) = 269874

GCD(423, 638) = ( 423 x 638 ) / 269874

= 423 / 638

= 423

Step2:

LCM(1, 708) = 708

GCD(1, 708) = ( 1 x 708 ) / 708

= 1 / 708

= 1

Step3:

LCM(1, 220) = 220

GCD(1, 220) = ( 1 x 220 ) / 220

= 1 / 220

= 1

So, Greatest Common Divisor of 423, 638, 708, 220 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 963, 741, 995, 359
• GCD of 779, 406, 669, 181
• GCD of 910, 853, 977, 310
• GCD of 141, 581, 782, 271
• GCD of 766, 599, 122, 881

Given numbers are 423, 638, 708, 220
The greatest common divisor of numbers 423, 638, 708, 220 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 423, 638, 708, 220 is 1.

1. What is the GCD of 423, 638, 708, 220?

GCD of given numbers 423, 638, 708, 220 is 1

2. How to calculate the greatest common divisor of 423, 638, 708, 220?

We can find the highest common divisor of 423, 638, 708, 220 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 423, 638, 708, 220 i.e 1.

3. How can I use the GCD of 423, 638, 708, 220Calculator?

Out the numbers 423, 638, 708, 220 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.