GCD of 648, 128, 991, 966 Calculator

Given Input numbers are 648, 128, 991, 966

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

Divisors of 648 :

The positive integer divisors of 648 that completely divides 648 are.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648

Divisors of 128 :

The positive integer divisors of 128 that completely divides 128 are.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 991 :

The positive integer divisors of 991 that completely divides 991 are.

1, 991

Divisors of 966 :

The positive integer divisors of 966 that completely divides 966 are.

1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 138, 161, 322, 483, 966

GCD of numbers is the greatest common divisor

So, the GCD (648, 128, 991, 966) = 1.

Given numbers are 648, 128, 991, 966

The list of prime factors of all numbers are

Prime factors of 648 are 2 x 2 x 2 x 3 x 3 x 3 x 3

Prime factors of 128 are 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime factors of 991 are 991

Prime factors of 966 are 2 x 3 x 7 x 23

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

Given numbers are 648, 128, 991, 966

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

Apply this formula for all numbers.

Step1:

LCM(648, 128) = 10368

GCD(648, 128) = ( 648 x 128 ) / 10368

= 648 / 128

= 648

Step2:

LCM(8, 991) = 7928

GCD(8, 991) = ( 8 x 991 ) / 7928

= 8 / 991

= 8

Step3:

LCM(1, 966) = 966

GCD(1, 966) = ( 1 x 966 ) / 966

= 1 / 966

= 1

So, Greatest Common Divisor of 648, 128, 991, 966 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 210, 506, 869, 576
• GCD of 715, 827, 509, 852
• GCD of 398, 318, 762, 187
• GCD of 294, 440, 467, 396
• GCD of 479, 671, 192, 945

Given numbers are 648, 128, 991, 966
The greatest common divisor of numbers 648, 128, 991, 966 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 648, 128, 991, 966 is 1.

1. What is the GCD of 648, 128, 991, 966?

GCD of given numbers 648, 128, 991, 966 is 1

2. How to calculate the greatest common divisor of 648, 128, 991, 966?

We can find the highest common divisor of 648, 128, 991, 966 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 648, 128, 991, 966 i.e 1.

3. How can I use the GCD of 648, 128, 991, 966Calculator?

Out the numbers 648, 128, 991, 966 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.