GCD of 77, 18, 55, 19 Calculator

Given Input numbers are 77, 18, 55, 19

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

Divisors of 77 :

The positive integer divisors of 77 that completely divides 77 are.

1, 7, 11, 77

Divisors of 18 :

The positive integer divisors of 18 that completely divides 18 are.

1, 2, 3, 6, 9, 18

Divisors of 55 :

The positive integer divisors of 55 that completely divides 55 are.

1, 5, 11, 55

Divisors of 19 :

The positive integer divisors of 19 that completely divides 19 are.

1, 19

GCD of numbers is the greatest common divisor

So, the GCD (77, 18, 55, 19) = 1.

Given numbers are 77, 18, 55, 19

The list of prime factors of all numbers are

Prime factors of 77 are 7 x 11

Prime factors of 18 are 2 x 3 x 3

Prime factors of 55 are 5 x 11

Prime factors of 19 are 19

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

Given numbers are 77, 18, 55, 19

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

Apply this formula for all numbers.

Step1:

LCM(77, 18) = 1386

GCD(77, 18) = ( 77 x 18 ) / 1386

= 77 / 18

= 77

Step2:

LCM(1, 55) = 55

GCD(1, 55) = ( 1 x 55 ) / 55

= 1 / 55

= 1

Step3:

LCM(1, 19) = 19

GCD(1, 19) = ( 1 x 19 ) / 19

= 1 / 19

= 1

So, Greatest Common Divisor of 77, 18, 55, 19 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 28, 71, 80, 53
• GCD of 41, 79, 51, 40
• GCD of 79, 62, 35, 69
• GCD of 15, 82, 50, 35
• GCD of 85, 75, 25, 86

Given numbers are 77, 18, 55, 19
The greatest common divisor of numbers 77, 18, 55, 19 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 77, 18, 55, 19 is 1.

1. What is the GCD of 77, 18, 55, 19?

GCD of given numbers 77, 18, 55, 19 is 1

2. How to calculate the greatest common divisor of 77, 18, 55, 19?

We can find the highest common divisor of 77, 18, 55, 19 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 77, 18, 55, 19 i.e 1.

3. How can I use the GCD of 77, 18, 55, 19Calculator?

Out the numbers 77, 18, 55, 19 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.