GCD of 673, 771, 721, 645 Calculator

Given Input numbers are 673, 771, 721, 645

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

Divisors of 673 :

The positive integer divisors of 673 that completely divides 673 are.

1, 673

Divisors of 771 :

The positive integer divisors of 771 that completely divides 771 are.

1, 3, 257, 771

Divisors of 721 :

The positive integer divisors of 721 that completely divides 721 are.

1, 7, 103, 721

Divisors of 645 :

The positive integer divisors of 645 that completely divides 645 are.

1, 3, 5, 15, 43, 129, 215, 645

GCD of numbers is the greatest common divisor

So, the GCD (673, 771, 721, 645) = 1.

Given numbers are 673, 771, 721, 645

The list of prime factors of all numbers are

Prime factors of 673 are 673

Prime factors of 771 are 3 x 257

Prime factors of 721 are 7 x 103

Prime factors of 645 are 3 x 5 x 43

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

Given numbers are 673, 771, 721, 645

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

Apply this formula for all numbers.

Step1:

LCM(673, 771) = 518883

GCD(673, 771) = ( 673 x 771 ) / 518883

= 673 / 771

= 673

Step2:

LCM(1, 721) = 721

GCD(1, 721) = ( 1 x 721 ) / 721

= 1 / 721

= 1

Step3:

LCM(1, 645) = 645

GCD(1, 645) = ( 1 x 645 ) / 645

= 1 / 645

= 1

So, Greatest Common Divisor of 673, 771, 721, 645 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 295, 413, 165, 584
• GCD of 495, 370, 492, 831
• GCD of 961, 590, 901, 878
• GCD of 693, 922, 749, 846
• GCD of 273, 815, 140, 199

Given numbers are 673, 771, 721, 645
The greatest common divisor of numbers 673, 771, 721, 645 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 673, 771, 721, 645 is 1.

1. What is the GCD of 673, 771, 721, 645?

GCD of given numbers 673, 771, 721, 645 is 1

2. How to calculate the greatest common divisor of 673, 771, 721, 645?

We can find the highest common divisor of 673, 771, 721, 645 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 673, 771, 721, 645 i.e 1.

3. How can I use the GCD of 673, 771, 721, 645Calculator?

Out the numbers 673, 771, 721, 645 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.