GCD of 680, 653, 979, 420 Calculator

Given Input numbers are 680, 653, 979, 420

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

Divisors of 680 :

The positive integer divisors of 680 that completely divides 680 are.

1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680

Divisors of 653 :

The positive integer divisors of 653 that completely divides 653 are.

1, 653

Divisors of 979 :

The positive integer divisors of 979 that completely divides 979 are.

1, 11, 89, 979

Divisors of 420 :

The positive integer divisors of 420 that completely divides 420 are.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

GCD of numbers is the greatest common divisor

So, the GCD (680, 653, 979, 420) = 1.

Given numbers are 680, 653, 979, 420

The list of prime factors of all numbers are

Prime factors of 680 are 2 x 2 x 2 x 5 x 17

Prime factors of 653 are 653

Prime factors of 979 are 11 x 89

Prime factors of 420 are 2 x 2 x 3 x 5 x 7

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

Given numbers are 680, 653, 979, 420

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

Apply this formula for all numbers.

Step1:

LCM(680, 653) = 444040

GCD(680, 653) = ( 680 x 653 ) / 444040

= 680 / 653

= 680

Step2:

LCM(1, 979) = 979

GCD(1, 979) = ( 1 x 979 ) / 979

= 1 / 979

= 1

Step3:

LCM(1, 420) = 420

GCD(1, 420) = ( 1 x 420 ) / 420

= 1 / 420

= 1

So, Greatest Common Divisor of 680, 653, 979, 420 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 949, 142, 714, 241
• GCD of 183, 205, 878, 416
• GCD of 528, 356, 530, 882
• GCD of 724, 941, 525, 965
• GCD of 314, 110, 889, 111

Given numbers are 680, 653, 979, 420
The greatest common divisor of numbers 680, 653, 979, 420 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 680, 653, 979, 420 is 1.

1. What is the GCD of 680, 653, 979, 420?

GCD of given numbers 680, 653, 979, 420 is 1

2. How to calculate the greatest common divisor of 680, 653, 979, 420?

We can find the highest common divisor of 680, 653, 979, 420 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 680, 653, 979, 420 i.e 1.

3. How can I use the GCD of 680, 653, 979, 420Calculator?

Out the numbers 680, 653, 979, 420 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.