GCD of 644, 669, 159, 397 Calculator

Given Input numbers are 644, 669, 159, 397

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

Divisors of 644 :

The positive integer divisors of 644 that completely divides 644 are.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 669 :

The positive integer divisors of 669 that completely divides 669 are.

1, 3, 223, 669

Divisors of 159 :

The positive integer divisors of 159 that completely divides 159 are.

1, 3, 53, 159

Divisors of 397 :

The positive integer divisors of 397 that completely divides 397 are.

1, 397

GCD of numbers is the greatest common divisor

So, the GCD (644, 669, 159, 397) = 1.

Given numbers are 644, 669, 159, 397

The list of prime factors of all numbers are

Prime factors of 644 are 2 x 2 x 7 x 23

Prime factors of 669 are 3 x 223

Prime factors of 159 are 3 x 53

Prime factors of 397 are 397

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

Given numbers are 644, 669, 159, 397

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

Apply this formula for all numbers.

Step1:

LCM(644, 669) = 430836

GCD(644, 669) = ( 644 x 669 ) / 430836

= 644 / 669

= 644

Step2:

LCM(1, 159) = 159

GCD(1, 159) = ( 1 x 159 ) / 159

= 1 / 159

= 1

Step3:

LCM(1, 397) = 397

GCD(1, 397) = ( 1 x 397 ) / 397

= 1 / 397

= 1

So, Greatest Common Divisor of 644, 669, 159, 397 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 745, 974, 178, 725
• GCD of 551, 382, 646, 406
• GCD of 230, 269, 670, 415
• GCD of 818, 765, 964, 531
• GCD of 375, 670, 179, 231

Given numbers are 644, 669, 159, 397
The greatest common divisor of numbers 644, 669, 159, 397 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 644, 669, 159, 397 is 1.

1. What is the GCD of 644, 669, 159, 397?

GCD of given numbers 644, 669, 159, 397 is 1

2. How to calculate the greatest common divisor of 644, 669, 159, 397?

We can find the highest common divisor of 644, 669, 159, 397 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 644, 669, 159, 397 i.e 1.

3. How can I use the GCD of 644, 669, 159, 397Calculator?

Out the numbers 644, 669, 159, 397 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.