GCD of 428, 478, 407, 647 Calculator

Given Input numbers are 428, 478, 407, 647

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

Divisors of 428 :

The positive integer divisors of 428 that completely divides 428 are.

1, 2, 4, 107, 214, 428

Divisors of 478 :

The positive integer divisors of 478 that completely divides 478 are.

1, 2, 239, 478

Divisors of 407 :

The positive integer divisors of 407 that completely divides 407 are.

1, 11, 37, 407

Divisors of 647 :

The positive integer divisors of 647 that completely divides 647 are.

1, 647

GCD of numbers is the greatest common divisor

So, the GCD (428, 478, 407, 647) = 1.

Given numbers are 428, 478, 407, 647

The list of prime factors of all numbers are

Prime factors of 428 are 2 x 2 x 107

Prime factors of 478 are 2 x 239

Prime factors of 407 are 11 x 37

Prime factors of 647 are 647

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

Given numbers are 428, 478, 407, 647

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

Apply this formula for all numbers.

Step1:

LCM(428, 478) = 102292

GCD(428, 478) = ( 428 x 478 ) / 102292

= 428 / 478

= 428

Step2:

LCM(2, 407) = 814

GCD(2, 407) = ( 2 x 407 ) / 814

= 2 / 407

= 2

Step3:

LCM(1, 647) = 647

GCD(1, 647) = ( 1 x 647 ) / 647

= 1 / 647

= 1

So, Greatest Common Divisor of 428, 478, 407, 647 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 746, 620, 818, 327
• GCD of 177, 731, 907, 992
• GCD of 155, 941, 677, 671
• GCD of 466, 365, 404, 328
• GCD of 379, 587, 595, 499

Given numbers are 428, 478, 407, 647
The greatest common divisor of numbers 428, 478, 407, 647 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 428, 478, 407, 647 is 1.

1. What is the GCD of 428, 478, 407, 647?

GCD of given numbers 428, 478, 407, 647 is 1

2. How to calculate the greatest common divisor of 428, 478, 407, 647?

We can find the highest common divisor of 428, 478, 407, 647 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 428, 478, 407, 647 i.e 1.

3. How can I use the GCD of 428, 478, 407, 647Calculator?

Out the numbers 428, 478, 407, 647 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.