GCD of 643, 442, 516, 120 Calculator

Given Input numbers are 643, 442, 516, 120

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

Divisors of 643 :

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

1, 643

Divisors of 442 :

The positive integer divisors of 442 that completely divides 442 are.

1, 2, 13, 17, 26, 34, 221, 442

Divisors of 516 :

The positive integer divisors of 516 that completely divides 516 are.

1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516

Divisors of 120 :

The positive integer divisors of 120 that completely divides 120 are.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120

GCD of numbers is the greatest common divisor

So, the GCD (643, 442, 516, 120) = 1.

Given numbers are 643, 442, 516, 120

The list of prime factors of all numbers are

Prime factors of 643 are 643

Prime factors of 442 are 2 x 13 x 17

Prime factors of 516 are 2 x 2 x 3 x 43

Prime factors of 120 are 2 x 2 x 2 x 3 x 5

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

Given numbers are 643, 442, 516, 120

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

Apply this formula for all numbers.

Step1:

LCM(643, 442) = 284206

GCD(643, 442) = ( 643 x 442 ) / 284206

= 643 / 442

= 643

Step2:

LCM(1, 516) = 516

GCD(1, 516) = ( 1 x 516 ) / 516

= 1 / 516

= 1

Step3:

LCM(1, 120) = 120

GCD(1, 120) = ( 1 x 120 ) / 120

= 1 / 120

= 1

So, Greatest Common Divisor of 643, 442, 516, 120 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 287, 260, 778, 737
• GCD of 691, 804, 409, 209
• GCD of 989, 235, 683, 265
• GCD of 645, 781, 914, 616
• GCD of 665, 235, 745, 266

Given numbers are 643, 442, 516, 120
The greatest common divisor of numbers 643, 442, 516, 120 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 643, 442, 516, 120 is 1.

1. What is the GCD of 643, 442, 516, 120?

GCD of given numbers 643, 442, 516, 120 is 1

2. How to calculate the greatest common divisor of 643, 442, 516, 120?

We can find the highest common divisor of 643, 442, 516, 120 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 643, 442, 516, 120 i.e 1.

3. How can I use the GCD of 643, 442, 516, 120Calculator?

Out the numbers 643, 442, 516, 120 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.