GCD of 620, 657, 28, 308 Calculator

Given Input numbers are 620, 657, 28, 308

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

Divisors of 620 :

The positive integer divisors of 620 that completely divides 620 are.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

Divisors of 657 :

The positive integer divisors of 657 that completely divides 657 are.

1, 3, 9, 73, 219, 657

Divisors of 28 :

The positive integer divisors of 28 that completely divides 28 are.

1, 2, 4, 7, 14, 28

Divisors of 308 :

The positive integer divisors of 308 that completely divides 308 are.

1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308

GCD of numbers is the greatest common divisor

So, the GCD (620, 657, 28, 308) = 1.

Given numbers are 620, 657, 28, 308

The list of prime factors of all numbers are

Prime factors of 620 are 2 x 2 x 5 x 31

Prime factors of 657 are 3 x 3 x 73

Prime factors of 28 are 2 x 2 x 7

Prime factors of 308 are 2 x 2 x 7 x 11

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

Given numbers are 620, 657, 28, 308

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

Apply this formula for all numbers.

Step1:

LCM(620, 657) = 407340

GCD(620, 657) = ( 620 x 657 ) / 407340

= 620 / 657

= 620

Step2:

LCM(1, 28) = 28

GCD(1, 28) = ( 1 x 28 ) / 28

= 1 / 28

= 1

Step3:

LCM(1, 308) = 308

GCD(1, 308) = ( 1 x 308 ) / 308

= 1 / 308

= 1

So, Greatest Common Divisor of 620, 657, 28, 308 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 499, 921, 80, 192
• GCD of 544, 612, 92, 914
• GCD of 163, 379, 56, 131
• GCD of 320, 487, 48, 286
• GCD of 720, 786, 39, 150

Given numbers are 620, 657, 28, 308
The greatest common divisor of numbers 620, 657, 28, 308 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 620, 657, 28, 308 is 1.

1. What is the GCD of 620, 657, 28, 308?

GCD of given numbers 620, 657, 28, 308 is 1

2. How to calculate the greatest common divisor of 620, 657, 28, 308?

We can find the highest common divisor of 620, 657, 28, 308 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 620, 657, 28, 308 i.e 1.

3. How can I use the GCD of 620, 657, 28, 308Calculator?

Out the numbers 620, 657, 28, 308 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.