GCD of 391, 628, 215, 488 Calculator

Given Input numbers are 391, 628, 215, 488

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

Divisors of 391 :

The positive integer divisors of 391 that completely divides 391 are.

1, 17, 23, 391

Divisors of 628 :

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

1, 2, 4, 157, 314, 628

Divisors of 215 :

The positive integer divisors of 215 that completely divides 215 are.

1, 5, 43, 215

Divisors of 488 :

The positive integer divisors of 488 that completely divides 488 are.

1, 2, 4, 8, 61, 122, 244, 488

GCD of numbers is the greatest common divisor

So, the GCD (391, 628, 215, 488) = 1.

Given numbers are 391, 628, 215, 488

The list of prime factors of all numbers are

Prime factors of 391 are 17 x 23

Prime factors of 628 are 2 x 2 x 157

Prime factors of 215 are 5 x 43

Prime factors of 488 are 2 x 2 x 2 x 61

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

Given numbers are 391, 628, 215, 488

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

Apply this formula for all numbers.

Step1:

LCM(391, 628) = 245548

GCD(391, 628) = ( 391 x 628 ) / 245548

= 391 / 628

= 391

Step2:

LCM(1, 215) = 215

GCD(1, 215) = ( 1 x 215 ) / 215

= 1 / 215

= 1

Step3:

LCM(1, 488) = 488

GCD(1, 488) = ( 1 x 488 ) / 488

= 1 / 488

= 1

So, Greatest Common Divisor of 391, 628, 215, 488 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 624, 715, 872, 144
• GCD of 365, 411, 261, 427
• GCD of 822, 685, 960, 338
• GCD of 596, 303, 825, 905
• GCD of 782, 466, 232, 260

Given numbers are 391, 628, 215, 488
The greatest common divisor of numbers 391, 628, 215, 488 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 391, 628, 215, 488 is 1.

1. What is the GCD of 391, 628, 215, 488?

GCD of given numbers 391, 628, 215, 488 is 1

2. How to calculate the greatest common divisor of 391, 628, 215, 488?

We can find the highest common divisor of 391, 628, 215, 488 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 391, 628, 215, 488 i.e 1.

3. How can I use the GCD of 391, 628, 215, 488Calculator?

Out the numbers 391, 628, 215, 488 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.