GCD of 661, 749, 620 Calculator

Given Input numbers are 661, 749, 620

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

Divisors of 661 :

The positive integer divisors of 661 that completely divides 661 are.

1, 661

Divisors of 749 :

The positive integer divisors of 749 that completely divides 749 are.

1, 7, 107, 749

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 (661, 749, 620) = 1.

Given numbers are 661, 749, 620

The list of prime factors of all numbers are

Prime factors of 661 are 661

Prime factors of 749 are 7 x 107

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 661, 749, 620

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

Apply this formula for all numbers.

Step1:

LCM(661, 749) = 495089

GCD(661, 749) = ( 661 x 749 ) / 495089

= 661 / 749

= 661

Step2:

LCM(1, 620) = 620

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

= 1 / 620

= 1

So, Greatest Common Divisor of 661, 749, 620 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 336, 801, 652
• GCD of 363, 870, 677
• GCD of 331, 864, 501
• GCD of 316, 993, 801
• GCD of 100, 467, 825

Given numbers are 661, 749, 620
The greatest common divisor of numbers 661, 749, 620 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 661, 749, 620 is 1.

1. What is the GCD of 661, 749, 620?

GCD of given numbers 661, 749, 620 is 1

2. How to calculate the greatest common divisor of 661, 749, 620?

We can find the highest common divisor of 661, 749, 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 661, 749, 620 i.e 1.

3. How can I use the GCD of 661, 749, 620Calculator?

Out the numbers 661, 749, 620 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.