GCD of 385, 987, 20 Calculator

Given Input numbers are 385, 987, 20

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

Divisors of 385 :

The positive integer divisors of 385 that completely divides 385 are.

1, 5, 7, 11, 35, 55, 77, 385

Divisors of 987 :

The positive integer divisors of 987 that completely divides 987 are.

1, 3, 7, 21, 47, 141, 329, 987

Divisors of 20 :

The positive integer divisors of 20 that completely divides 20 are.

1, 2, 4, 5, 10, 20

GCD of numbers is the greatest common divisor

So, the GCD (385, 987, 20) = 1.

Given numbers are 385, 987, 20

The list of prime factors of all numbers are

Prime factors of 385 are 5 x 7 x 11

Prime factors of 987 are 3 x 7 x 47

Prime factors of 20 are 2 x 2 x 5

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

Given numbers are 385, 987, 20

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

Apply this formula for all numbers.

Step1:

LCM(385, 987) = 54285

GCD(385, 987) = ( 385 x 987 ) / 54285

= 385 / 987

= 385

Step2:

LCM(7, 20) = 140

GCD(7, 20) = ( 7 x 20 ) / 140

= 7 / 20

= 7

So, Greatest Common Divisor of 385, 987, 20 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 186, 287, 73
• GCD of 663, 325, 71
• GCD of 746, 287, 56
• GCD of 101, 295, 65
• GCD of 377, 457, 77

Given numbers are 385, 987, 20
The greatest common divisor of numbers 385, 987, 20 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 385, 987, 20 is 1.

1. What is the GCD of 385, 987, 20?

GCD of given numbers 385, 987, 20 is 1

2. How to calculate the greatest common divisor of 385, 987, 20?

We can find the highest common divisor of 385, 987, 20 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 385, 987, 20 i.e 1.

3. How can I use the GCD of 385, 987, 20Calculator?

Out the numbers 385, 987, 20 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.