GCD of 387, 220, 644, 461 Calculator

Given Input numbers are 387, 220, 644, 461

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

Divisors of 387 :

The positive integer divisors of 387 that completely divides 387 are.

1, 3, 9, 43, 129, 387

Divisors of 220 :

The positive integer divisors of 220 that completely divides 220 are.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220

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 461 :

The positive integer divisors of 461 that completely divides 461 are.

1, 461

GCD of numbers is the greatest common divisor

So, the GCD (387, 220, 644, 461) = 1.

Given numbers are 387, 220, 644, 461

The list of prime factors of all numbers are

Prime factors of 387 are 3 x 3 x 43

Prime factors of 220 are 2 x 2 x 5 x 11

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

Prime factors of 461 are 461

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

Given numbers are 387, 220, 644, 461

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

Apply this formula for all numbers.

Step1:

LCM(387, 220) = 85140

GCD(387, 220) = ( 387 x 220 ) / 85140

= 387 / 220

= 387

Step2:

LCM(1, 644) = 644

GCD(1, 644) = ( 1 x 644 ) / 644

= 1 / 644

= 1

Step3:

LCM(1, 461) = 461

GCD(1, 461) = ( 1 x 461 ) / 461

= 1 / 461

= 1

So, Greatest Common Divisor of 387, 220, 644, 461 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 413, 416, 297, 971
• GCD of 393, 797, 367, 497
• GCD of 432, 179, 557, 539
• GCD of 847, 155, 357, 333
• GCD of 572, 428, 855, 690

Given numbers are 387, 220, 644, 461
The greatest common divisor of numbers 387, 220, 644, 461 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 387, 220, 644, 461 is 1.

1. What is the GCD of 387, 220, 644, 461?

GCD of given numbers 387, 220, 644, 461 is 1

2. How to calculate the greatest common divisor of 387, 220, 644, 461?

We can find the highest common divisor of 387, 220, 644, 461 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 387, 220, 644, 461 i.e 1.

3. How can I use the GCD of 387, 220, 644, 461Calculator?

Out the numbers 387, 220, 644, 461 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.