GCD of 688, 645, 674, 668 Calculator

Given Input numbers are 688, 645, 674, 668

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

Divisors of 688 :

The positive integer divisors of 688 that completely divides 688 are.

1, 2, 4, 8, 16, 43, 86, 172, 344, 688

Divisors of 645 :

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

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

Divisors of 674 :

The positive integer divisors of 674 that completely divides 674 are.

1, 2, 337, 674

Divisors of 668 :

The positive integer divisors of 668 that completely divides 668 are.

1, 2, 4, 167, 334, 668

GCD of numbers is the greatest common divisor

So, the GCD (688, 645, 674, 668) = 1.

Given numbers are 688, 645, 674, 668

The list of prime factors of all numbers are

Prime factors of 688 are 2 x 2 x 2 x 2 x 43

Prime factors of 645 are 3 x 5 x 43

Prime factors of 674 are 2 x 337

Prime factors of 668 are 2 x 2 x 167

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

Given numbers are 688, 645, 674, 668

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

Apply this formula for all numbers.

Step1:

LCM(688, 645) = 10320

GCD(688, 645) = ( 688 x 645 ) / 10320

= 688 / 645

= 688

Step2:

LCM(43, 674) = 28982

GCD(43, 674) = ( 43 x 674 ) / 28982

= 43 / 674

= 43

Step3:

LCM(1, 668) = 668

GCD(1, 668) = ( 1 x 668 ) / 668

= 1 / 668

= 1

So, Greatest Common Divisor of 688, 645, 674, 668 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 308, 846, 328, 901
• GCD of 324, 356, 763, 495
• GCD of 667, 575, 401, 460
• GCD of 595, 889, 277, 509
• GCD of 630, 308, 316, 440

Given numbers are 688, 645, 674, 668
The greatest common divisor of numbers 688, 645, 674, 668 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 688, 645, 674, 668 is 1.

1. What is the GCD of 688, 645, 674, 668?

GCD of given numbers 688, 645, 674, 668 is 1

2. How to calculate the greatest common divisor of 688, 645, 674, 668?

We can find the highest common divisor of 688, 645, 674, 668 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 688, 645, 674, 668 i.e 1.

3. How can I use the GCD of 688, 645, 674, 668Calculator?

Out the numbers 688, 645, 674, 668 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.