GCD of 621, 620, 69, 289 Calculator

Given Input numbers are 621, 620, 69, 289

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

Divisors of 621 :

The positive integer divisors of 621 that completely divides 621 are.

1, 3, 9, 23, 27, 69, 207, 621

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

Divisors of 69 :

The positive integer divisors of 69 that completely divides 69 are.

1, 3, 23, 69

Divisors of 289 :

The positive integer divisors of 289 that completely divides 289 are.

1, 17, 289

GCD of numbers is the greatest common divisor

So, the GCD (621, 620, 69, 289) = 1.

Given numbers are 621, 620, 69, 289

The list of prime factors of all numbers are

Prime factors of 621 are 3 x 3 x 3 x 23

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

Prime factors of 69 are 3 x 23

Prime factors of 289 are 17 x 17

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

Given numbers are 621, 620, 69, 289

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

Apply this formula for all numbers.

Step1:

LCM(621, 620) = 385020

GCD(621, 620) = ( 621 x 620 ) / 385020

= 621 / 620

= 621

Step2:

LCM(1, 69) = 69

GCD(1, 69) = ( 1 x 69 ) / 69

= 1 / 69

= 1

Step3:

LCM(1, 289) = 289

GCD(1, 289) = ( 1 x 289 ) / 289

= 1 / 289

= 1

So, Greatest Common Divisor of 621, 620, 69, 289 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 452, 462, 90, 486
• GCD of 771, 830, 38, 892
• GCD of 510, 917, 10, 567
• GCD of 199, 362, 50, 766
• GCD of 244, 394, 74, 115

Given numbers are 621, 620, 69, 289
The greatest common divisor of numbers 621, 620, 69, 289 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 621, 620, 69, 289 is 1.

1. What is the GCD of 621, 620, 69, 289?

GCD of given numbers 621, 620, 69, 289 is 1

2. How to calculate the greatest common divisor of 621, 620, 69, 289?

We can find the highest common divisor of 621, 620, 69, 289 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 621, 620, 69, 289 i.e 1.

3. How can I use the GCD of 621, 620, 69, 289Calculator?

Out the numbers 621, 620, 69, 289 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.