GCD of 642, 155, 777, 984 Calculator

Given Input numbers are 642, 155, 777, 984

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

Divisors of 642 :

The positive integer divisors of 642 that completely divides 642 are.

1, 2, 3, 6, 107, 214, 321, 642

Divisors of 155 :

The positive integer divisors of 155 that completely divides 155 are.

1, 5, 31, 155

Divisors of 777 :

The positive integer divisors of 777 that completely divides 777 are.

1, 3, 7, 21, 37, 111, 259, 777

Divisors of 984 :

The positive integer divisors of 984 that completely divides 984 are.

1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 984

GCD of numbers is the greatest common divisor

So, the GCD (642, 155, 777, 984) = 1.

Given numbers are 642, 155, 777, 984

The list of prime factors of all numbers are

Prime factors of 642 are 2 x 3 x 107

Prime factors of 155 are 5 x 31

Prime factors of 777 are 3 x 7 x 37

Prime factors of 984 are 2 x 2 x 2 x 3 x 41

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

Given numbers are 642, 155, 777, 984

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

Apply this formula for all numbers.

Step1:

LCM(642, 155) = 99510

GCD(642, 155) = ( 642 x 155 ) / 99510

= 642 / 155

= 642

Step2:

LCM(1, 777) = 777

GCD(1, 777) = ( 1 x 777 ) / 777

= 1 / 777

= 1

Step3:

LCM(1, 984) = 984

GCD(1, 984) = ( 1 x 984 ) / 984

= 1 / 984

= 1

So, Greatest Common Divisor of 642, 155, 777, 984 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 731, 917, 801, 408
• GCD of 895, 800, 134, 392
• GCD of 460, 998, 812, 769
• GCD of 602, 392, 404, 235
• GCD of 396, 311, 137, 359

Given numbers are 642, 155, 777, 984
The greatest common divisor of numbers 642, 155, 777, 984 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 642, 155, 777, 984 is 1.

1. What is the GCD of 642, 155, 777, 984?

GCD of given numbers 642, 155, 777, 984 is 1

2. How to calculate the greatest common divisor of 642, 155, 777, 984?

We can find the highest common divisor of 642, 155, 777, 984 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 642, 155, 777, 984 i.e 1.

3. How can I use the GCD of 642, 155, 777, 984Calculator?

Out the numbers 642, 155, 777, 984 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.