GCD of 909, 354, 20, 478 Calculator

Given Input numbers are 909, 354, 20, 478

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

Divisors of 909 :

The positive integer divisors of 909 that completely divides 909 are.

1, 3, 9, 101, 303, 909

Divisors of 354 :

The positive integer divisors of 354 that completely divides 354 are.

1, 2, 3, 6, 59, 118, 177, 354

Divisors of 20 :

The positive integer divisors of 20 that completely divides 20 are.

1, 2, 4, 5, 10, 20

Divisors of 478 :

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

1, 2, 239, 478

GCD of numbers is the greatest common divisor

So, the GCD (909, 354, 20, 478) = 1.

Given numbers are 909, 354, 20, 478

The list of prime factors of all numbers are

Prime factors of 909 are 3 x 3 x 101

Prime factors of 354 are 2 x 3 x 59

Prime factors of 20 are 2 x 2 x 5

Prime factors of 478 are 2 x 239

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

Given numbers are 909, 354, 20, 478

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

Apply this formula for all numbers.

Step1:

LCM(909, 354) = 107262

GCD(909, 354) = ( 909 x 354 ) / 107262

= 909 / 354

= 909

Step2:

LCM(3, 20) = 60

GCD(3, 20) = ( 3 x 20 ) / 60

= 3 / 20

= 3

Step3:

LCM(1, 478) = 478

GCD(1, 478) = ( 1 x 478 ) / 478

= 1 / 478

= 1

So, Greatest Common Divisor of 909, 354, 20, 478 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 131, 640, 80, 745
• GCD of 414, 545, 31, 670
• GCD of 817, 736, 93, 878
• GCD of 617, 688, 72, 528
• GCD of 738, 880, 42, 639

Given numbers are 909, 354, 20, 478
The greatest common divisor of numbers 909, 354, 20, 478 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 909, 354, 20, 478 is 1.

1. What is the GCD of 909, 354, 20, 478?

GCD of given numbers 909, 354, 20, 478 is 1

2. How to calculate the greatest common divisor of 909, 354, 20, 478?

We can find the highest common divisor of 909, 354, 20, 478 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 909, 354, 20, 478 i.e 1.

3. How can I use the GCD of 909, 354, 20, 478Calculator?

Out the numbers 909, 354, 20, 478 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.