GCD of 643, 445, 707, 728 Calculator

Given Input numbers are 643, 445, 707, 728

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 445 :

The positive integer divisors of 445 that completely divides 445 are.

1, 5, 89, 445

Divisors of 707 :

The positive integer divisors of 707 that completely divides 707 are.

1, 7, 101, 707

Divisors of 728 :

The positive integer divisors of 728 that completely divides 728 are.

1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728

GCD of numbers is the greatest common divisor

So, the GCD (643, 445, 707, 728) = 1.

Given numbers are 643, 445, 707, 728

The list of prime factors of all numbers are

Prime factors of 643 are 643

Prime factors of 445 are 5 x 89

Prime factors of 707 are 7 x 101

Prime factors of 728 are 2 x 2 x 2 x 7 x 13

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

Given numbers are 643, 445, 707, 728

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

Apply this formula for all numbers.

Step1:

LCM(643, 445) = 286135

GCD(643, 445) = ( 643 x 445 ) / 286135

= 643 / 445

= 643

Step2:

LCM(1, 707) = 707

GCD(1, 707) = ( 1 x 707 ) / 707

= 1 / 707

= 1

Step3:

LCM(1, 728) = 728

GCD(1, 728) = ( 1 x 728 ) / 728

= 1 / 728

= 1

So, Greatest Common Divisor of 643, 445, 707, 728 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 692, 565, 633, 224
• GCD of 812, 493, 162, 726
• GCD of 633, 711, 980, 254
• GCD of 162, 678, 613, 821
• GCD of 421, 555, 654, 658

Given numbers are 643, 445, 707, 728
The greatest common divisor of numbers 643, 445, 707, 728 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 643, 445, 707, 728 is 1.

1. What is the GCD of 643, 445, 707, 728?

GCD of given numbers 643, 445, 707, 728 is 1

2. How to calculate the greatest common divisor of 643, 445, 707, 728?

We can find the highest common divisor of 643, 445, 707, 728 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, 445, 707, 728 i.e 1.

3. How can I use the GCD of 643, 445, 707, 728Calculator?

Out the numbers 643, 445, 707, 728 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.