GCD of 428, 528, 470, 221 Calculator

Given Input numbers are 428, 528, 470, 221

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 528 :

The positive integer divisors of 528 that completely divides 528 are.

1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 264, 528

Divisors of 470 :

The positive integer divisors of 470 that completely divides 470 are.

1, 2, 5, 10, 47, 94, 235, 470

Divisors of 221 :

The positive integer divisors of 221 that completely divides 221 are.

1, 13, 17, 221

GCD of numbers is the greatest common divisor

So, the GCD (428, 528, 470, 221) = 1.

Given numbers are 428, 528, 470, 221

The list of prime factors of all numbers are

Prime factors of 428 are 2 x 2 x 107

Prime factors of 528 are 2 x 2 x 2 x 2 x 3 x 11

Prime factors of 470 are 2 x 5 x 47

Prime factors of 221 are 13 x 17

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

Given numbers are 428, 528, 470, 221

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

Apply this formula for all numbers.

Step1:

LCM(428, 528) = 56496

GCD(428, 528) = ( 428 x 528 ) / 56496

= 428 / 528

= 428

Step2:

LCM(4, 470) = 940

GCD(4, 470) = ( 4 x 470 ) / 940

= 4 / 470

= 4

Step3:

LCM(2, 221) = 442

GCD(2, 221) = ( 2 x 221 ) / 442

= 2 / 221

= 2

So, Greatest Common Divisor of 428, 528, 470, 221 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 866, 384, 561, 233
• GCD of 625, 328, 321, 230
• GCD of 656, 109, 216, 760
• GCD of 348, 150, 447, 157
• GCD of 699, 394, 652, 461

Given numbers are 428, 528, 470, 221
The greatest common divisor of numbers 428, 528, 470, 221 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 428, 528, 470, 221 is 1.

1. What is the GCD of 428, 528, 470, 221?

GCD of given numbers 428, 528, 470, 221 is 1

2. How to calculate the greatest common divisor of 428, 528, 470, 221?

We can find the highest common divisor of 428, 528, 470, 221 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, 528, 470, 221 i.e 1.

3. How can I use the GCD of 428, 528, 470, 221Calculator?

Out the numbers 428, 528, 470, 221 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.