GCD of 618, 639, 949, 980 Calculator

Given Input numbers are 618, 639, 949, 980

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

Divisors of 618 :

The positive integer divisors of 618 that completely divides 618 are.

1, 2, 3, 6, 103, 206, 309, 618

Divisors of 639 :

The positive integer divisors of 639 that completely divides 639 are.

1, 3, 9, 71, 213, 639

Divisors of 949 :

The positive integer divisors of 949 that completely divides 949 are.

1, 13, 73, 949

Divisors of 980 :

The positive integer divisors of 980 that completely divides 980 are.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980

GCD of numbers is the greatest common divisor

So, the GCD (618, 639, 949, 980) = 1.

Given numbers are 618, 639, 949, 980

The list of prime factors of all numbers are

Prime factors of 618 are 2 x 3 x 103

Prime factors of 639 are 3 x 3 x 71

Prime factors of 949 are 13 x 73

Prime factors of 980 are 2 x 2 x 5 x 7 x 7

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

Given numbers are 618, 639, 949, 980

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

Apply this formula for all numbers.

Step1:

LCM(618, 639) = 131634

GCD(618, 639) = ( 618 x 639 ) / 131634

= 618 / 639

= 618

Step2:

LCM(3, 949) = 2847

GCD(3, 949) = ( 3 x 949 ) / 2847

= 3 / 949

= 3

Step3:

LCM(1, 980) = 980

GCD(1, 980) = ( 1 x 980 ) / 980

= 1 / 980

= 1

So, Greatest Common Divisor of 618, 639, 949, 980 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 249, 860, 797, 139
• GCD of 910, 903, 459, 177
• GCD of 201, 901, 357, 177
• GCD of 759, 980, 928, 368
• GCD of 468, 743, 781, 661

Given numbers are 618, 639, 949, 980
The greatest common divisor of numbers 618, 639, 949, 980 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 618, 639, 949, 980 is 1.

1. What is the GCD of 618, 639, 949, 980?

GCD of given numbers 618, 639, 949, 980 is 1

2. How to calculate the greatest common divisor of 618, 639, 949, 980?

We can find the highest common divisor of 618, 639, 949, 980 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 618, 639, 949, 980 i.e 1.

3. How can I use the GCD of 618, 639, 949, 980Calculator?

Out the numbers 618, 639, 949, 980 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.