GCD of 628, 245, 395, 561 Calculator

Given Input numbers are 628, 245, 395, 561

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

Divisors of 628 :

The positive integer divisors of 628 that completely divides 628 are.

1, 2, 4, 157, 314, 628

Divisors of 245 :

The positive integer divisors of 245 that completely divides 245 are.

1, 5, 7, 35, 49, 245

Divisors of 395 :

The positive integer divisors of 395 that completely divides 395 are.

1, 5, 79, 395

Divisors of 561 :

The positive integer divisors of 561 that completely divides 561 are.

1, 3, 11, 17, 33, 51, 187, 561

GCD of numbers is the greatest common divisor

So, the GCD (628, 245, 395, 561) = 1.

Given numbers are 628, 245, 395, 561

The list of prime factors of all numbers are

Prime factors of 628 are 2 x 2 x 157

Prime factors of 245 are 5 x 7 x 7

Prime factors of 395 are 5 x 79

Prime factors of 561 are 3 x 11 x 17

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

Given numbers are 628, 245, 395, 561

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

Apply this formula for all numbers.

Step1:

LCM(628, 245) = 153860

GCD(628, 245) = ( 628 x 245 ) / 153860

= 628 / 245

= 628

Step2:

LCM(1, 395) = 395

GCD(1, 395) = ( 1 x 395 ) / 395

= 1 / 395

= 1

Step3:

LCM(1, 561) = 561

GCD(1, 561) = ( 1 x 561 ) / 561

= 1 / 561

= 1

So, Greatest Common Divisor of 628, 245, 395, 561 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 956, 214, 193, 881
• GCD of 884, 313, 588, 430
• GCD of 320, 636, 215, 685
• GCD of 747, 248, 171, 536
• GCD of 679, 514, 998, 656

Given numbers are 628, 245, 395, 561
The greatest common divisor of numbers 628, 245, 395, 561 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 628, 245, 395, 561 is 1.

1. What is the GCD of 628, 245, 395, 561?

GCD of given numbers 628, 245, 395, 561 is 1

2. How to calculate the greatest common divisor of 628, 245, 395, 561?

We can find the highest common divisor of 628, 245, 395, 561 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 628, 245, 395, 561 i.e 1.

3. How can I use the GCD of 628, 245, 395, 561Calculator?

Out the numbers 628, 245, 395, 561 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.