GCD of 621, 720, 155, 572 Calculator

Given Input numbers are 621, 720, 155, 572

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 720 :

The positive integer divisors of 720 that completely divides 720 are.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720

Divisors of 155 :

The positive integer divisors of 155 that completely divides 155 are.

1, 5, 31, 155

Divisors of 572 :

The positive integer divisors of 572 that completely divides 572 are.

1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572

GCD of numbers is the greatest common divisor

So, the GCD (621, 720, 155, 572) = 1.

Given numbers are 621, 720, 155, 572

The list of prime factors of all numbers are

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

Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5

Prime factors of 155 are 5 x 31

Prime factors of 572 are 2 x 2 x 11 x 13

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

Given numbers are 621, 720, 155, 572

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

Apply this formula for all numbers.

Step1:

LCM(621, 720) = 49680

GCD(621, 720) = ( 621 x 720 ) / 49680

= 621 / 720

= 621

Step2:

LCM(9, 155) = 1395

GCD(9, 155) = ( 9 x 155 ) / 1395

= 9 / 155

= 9

Step3:

LCM(1, 572) = 572

GCD(1, 572) = ( 1 x 572 ) / 572

= 1 / 572

= 1

So, Greatest Common Divisor of 621, 720, 155, 572 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 866, 234, 222, 963
• GCD of 888, 116, 965, 934
• GCD of 941, 783, 165, 400
• GCD of 700, 951, 817, 941
• GCD of 229, 541, 728, 163

Given numbers are 621, 720, 155, 572
The greatest common divisor of numbers 621, 720, 155, 572 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 621, 720, 155, 572 is 1.

1. What is the GCD of 621, 720, 155, 572?

GCD of given numbers 621, 720, 155, 572 is 1

2. How to calculate the greatest common divisor of 621, 720, 155, 572?

We can find the highest common divisor of 621, 720, 155, 572 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, 720, 155, 572 i.e 1.

3. How can I use the GCD of 621, 720, 155, 572Calculator?

Out the numbers 621, 720, 155, 572 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.