GCD of 642, 107, 678, 643 Calculator

Given Input numbers are 642, 107, 678, 643

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 107 :

The positive integer divisors of 107 that completely divides 107 are.

1, 107

Divisors of 678 :

The positive integer divisors of 678 that completely divides 678 are.

1, 2, 3, 6, 113, 226, 339, 678

Divisors of 643 :

The positive integer divisors of 643 that completely divides 643 are.

1, 643

GCD of numbers is the greatest common divisor

So, the GCD (642, 107, 678, 643) = 1.

Given numbers are 642, 107, 678, 643

The list of prime factors of all numbers are

Prime factors of 642 are 2 x 3 x 107

Prime factors of 107 are 107

Prime factors of 678 are 2 x 3 x 113

Prime factors of 643 are 643

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

Given numbers are 642, 107, 678, 643

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

Apply this formula for all numbers.

Step1:

LCM(642, 107) = 642

GCD(642, 107) = ( 642 x 107 ) / 642

= 642 / 107

= 642

Step2:

LCM(107, 678) = 72546

GCD(107, 678) = ( 107 x 678 ) / 72546

= 107 / 678

= 107

Step3:

LCM(1, 643) = 643

GCD(1, 643) = ( 1 x 643 ) / 643

= 1 / 643

= 1

So, Greatest Common Divisor of 642, 107, 678, 643 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 998, 596, 966, 741
• GCD of 685, 655, 313, 425
• GCD of 778, 216, 461, 923
• GCD of 846, 259, 465, 210
• GCD of 409, 103, 402, 246

Given numbers are 642, 107, 678, 643
The greatest common divisor of numbers 642, 107, 678, 643 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 642, 107, 678, 643 is 1.

1. What is the GCD of 642, 107, 678, 643?

GCD of given numbers 642, 107, 678, 643 is 1

2. How to calculate the greatest common divisor of 642, 107, 678, 643?

We can find the highest common divisor of 642, 107, 678, 643 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, 107, 678, 643 i.e 1.

3. How can I use the GCD of 642, 107, 678, 643Calculator?

Out the numbers 642, 107, 678, 643 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.