GCD of 489, 151, 20, 620 Calculator

Given Input numbers are 489, 151, 20, 620

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

Divisors of 489 :

The positive integer divisors of 489 that completely divides 489 are.

1, 3, 163, 489

Divisors of 151 :

The positive integer divisors of 151 that completely divides 151 are.

1, 151

Divisors of 20 :

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

1, 2, 4, 5, 10, 20

Divisors of 620 :

The positive integer divisors of 620 that completely divides 620 are.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

GCD of numbers is the greatest common divisor

So, the GCD (489, 151, 20, 620) = 1.

Given numbers are 489, 151, 20, 620

The list of prime factors of all numbers are

Prime factors of 489 are 3 x 163

Prime factors of 151 are 151

Prime factors of 20 are 2 x 2 x 5

Prime factors of 620 are 2 x 2 x 5 x 31

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

Given numbers are 489, 151, 20, 620

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

Apply this formula for all numbers.

Step1:

LCM(489, 151) = 73839

GCD(489, 151) = ( 489 x 151 ) / 73839

= 489 / 151

= 489

Step2:

LCM(1, 20) = 20

GCD(1, 20) = ( 1 x 20 ) / 20

= 1 / 20

= 1

Step3:

LCM(1, 620) = 620

GCD(1, 620) = ( 1 x 620 ) / 620

= 1 / 620

= 1

So, Greatest Common Divisor of 489, 151, 20, 620 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 730, 266, 57, 720
• GCD of 104, 155, 40, 986
• GCD of 880, 176, 49, 913
• GCD of 918, 216, 91, 871
• GCD of 311, 899, 86, 839

Given numbers are 489, 151, 20, 620
The greatest common divisor of numbers 489, 151, 20, 620 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 489, 151, 20, 620 is 1.

1. What is the GCD of 489, 151, 20, 620?

GCD of given numbers 489, 151, 20, 620 is 1

2. How to calculate the greatest common divisor of 489, 151, 20, 620?

We can find the highest common divisor of 489, 151, 20, 620 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 489, 151, 20, 620 i.e 1.

3. How can I use the GCD of 489, 151, 20, 620Calculator?

Out the numbers 489, 151, 20, 620 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.