GCD of 645, 652, 656, 389 Calculator

Given Input numbers are 645, 652, 656, 389

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

Divisors of 645 :

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

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

Divisors of 652 :

The positive integer divisors of 652 that completely divides 652 are.

1, 2, 4, 163, 326, 652

Divisors of 656 :

The positive integer divisors of 656 that completely divides 656 are.

1, 2, 4, 8, 16, 41, 82, 164, 328, 656

Divisors of 389 :

The positive integer divisors of 389 that completely divides 389 are.

1, 389

GCD of numbers is the greatest common divisor

So, the GCD (645, 652, 656, 389) = 1.

Given numbers are 645, 652, 656, 389

The list of prime factors of all numbers are

Prime factors of 645 are 3 x 5 x 43

Prime factors of 652 are 2 x 2 x 163

Prime factors of 656 are 2 x 2 x 2 x 2 x 41

Prime factors of 389 are 389

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

Given numbers are 645, 652, 656, 389

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

Apply this formula for all numbers.

Step1:

LCM(645, 652) = 420540

GCD(645, 652) = ( 645 x 652 ) / 420540

= 645 / 652

= 645

Step2:

LCM(1, 656) = 656

GCD(1, 656) = ( 1 x 656 ) / 656

= 1 / 656

= 1

Step3:

LCM(1, 389) = 389

GCD(1, 389) = ( 1 x 389 ) / 389

= 1 / 389

= 1

So, Greatest Common Divisor of 645, 652, 656, 389 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 521, 146, 343, 296
• GCD of 873, 913, 315, 269
• GCD of 851, 324, 785, 337
• GCD of 325, 111, 974, 984
• GCD of 139, 491, 370, 661

Given numbers are 645, 652, 656, 389
The greatest common divisor of numbers 645, 652, 656, 389 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 645, 652, 656, 389 is 1.

1. What is the GCD of 645, 652, 656, 389?

GCD of given numbers 645, 652, 656, 389 is 1

2. How to calculate the greatest common divisor of 645, 652, 656, 389?

We can find the highest common divisor of 645, 652, 656, 389 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 645, 652, 656, 389 i.e 1.

3. How can I use the GCD of 645, 652, 656, 389Calculator?

Out the numbers 645, 652, 656, 389 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.