GCD of 428, 139, 900, 640 Calculator

Given Input numbers are 428, 139, 900, 640

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 139 :

The positive integer divisors of 139 that completely divides 139 are.

1, 139

Divisors of 900 :

The positive integer divisors of 900 that completely divides 900 are.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900

Divisors of 640 :

The positive integer divisors of 640 that completely divides 640 are.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

GCD of numbers is the greatest common divisor

So, the GCD (428, 139, 900, 640) = 1.

Given numbers are 428, 139, 900, 640

The list of prime factors of all numbers are

Prime factors of 428 are 2 x 2 x 107

Prime factors of 139 are 139

Prime factors of 900 are 2 x 2 x 3 x 3 x 5 x 5

Prime factors of 640 are 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5

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

Given numbers are 428, 139, 900, 640

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

Apply this formula for all numbers.

Step1:

LCM(428, 139) = 59492

GCD(428, 139) = ( 428 x 139 ) / 59492

= 428 / 139

= 428

Step2:

LCM(1, 900) = 900

GCD(1, 900) = ( 1 x 900 ) / 900

= 1 / 900

= 1

Step3:

LCM(1, 640) = 640

GCD(1, 640) = ( 1 x 640 ) / 640

= 1 / 640

= 1

So, Greatest Common Divisor of 428, 139, 900, 640 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 666, 687, 669, 399
• GCD of 456, 139, 843, 123
• GCD of 399, 365, 559, 437
• GCD of 304, 343, 770, 558
• GCD of 850, 239, 614, 894

Given numbers are 428, 139, 900, 640
The greatest common divisor of numbers 428, 139, 900, 640 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 428, 139, 900, 640 is 1.

1. What is the GCD of 428, 139, 900, 640?

GCD of given numbers 428, 139, 900, 640 is 1

2. How to calculate the greatest common divisor of 428, 139, 900, 640?

We can find the highest common divisor of 428, 139, 900, 640 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, 139, 900, 640 i.e 1.

3. How can I use the GCD of 428, 139, 900, 640Calculator?

Out the numbers 428, 139, 900, 640 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.