GCD of 645, 656, 396, 704 Calculator

Given Input numbers are 645, 656, 396, 704

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 656 :

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

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

Divisors of 396 :

The positive integer divisors of 396 that completely divides 396 are.

1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396

Divisors of 704 :

The positive integer divisors of 704 that completely divides 704 are.

1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 176, 352, 704

GCD of numbers is the greatest common divisor

So, the GCD (645, 656, 396, 704) = 1.

Given numbers are 645, 656, 396, 704

The list of prime factors of all numbers are

Prime factors of 645 are 3 x 5 x 43

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

Prime factors of 396 are 2 x 2 x 3 x 3 x 11

Prime factors of 704 are 2 x 2 x 2 x 2 x 2 x 2 x 11

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

Given numbers are 645, 656, 396, 704

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

Apply this formula for all numbers.

Step1:

LCM(645, 656) = 423120

GCD(645, 656) = ( 645 x 656 ) / 423120

= 645 / 656

= 645

Step2:

LCM(1, 396) = 396

GCD(1, 396) = ( 1 x 396 ) / 396

= 1 / 396

= 1

Step3:

LCM(1, 704) = 704

GCD(1, 704) = ( 1 x 704 ) / 704

= 1 / 704

= 1

So, Greatest Common Divisor of 645, 656, 396, 704 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 694, 282, 948, 187
• GCD of 782, 236, 816, 211
• GCD of 243, 887, 932, 683
• GCD of 450, 322, 792, 114
• GCD of 427, 678, 250, 422

Given numbers are 645, 656, 396, 704
The greatest common divisor of numbers 645, 656, 396, 704 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 645, 656, 396, 704 is 1.

1. What is the GCD of 645, 656, 396, 704?

GCD of given numbers 645, 656, 396, 704 is 1

2. How to calculate the greatest common divisor of 645, 656, 396, 704?

We can find the highest common divisor of 645, 656, 396, 704 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, 656, 396, 704 i.e 1.

3. How can I use the GCD of 645, 656, 396, 704Calculator?

Out the numbers 645, 656, 396, 704 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.