GCD of 989, 440, 138, 255 Calculator

Given Input numbers are 989, 440, 138, 255

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

Divisors of 989 :

The positive integer divisors of 989 that completely divides 989 are.

1, 23, 43, 989

Divisors of 440 :

The positive integer divisors of 440 that completely divides 440 are.

1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440

Divisors of 138 :

The positive integer divisors of 138 that completely divides 138 are.

1, 2, 3, 6, 23, 46, 69, 138

Divisors of 255 :

The positive integer divisors of 255 that completely divides 255 are.

1, 3, 5, 15, 17, 51, 85, 255

GCD of numbers is the greatest common divisor

So, the GCD (989, 440, 138, 255) = 1.

Given numbers are 989, 440, 138, 255

The list of prime factors of all numbers are

Prime factors of 989 are 23 x 43

Prime factors of 440 are 2 x 2 x 2 x 5 x 11

Prime factors of 138 are 2 x 3 x 23

Prime factors of 255 are 3 x 5 x 17

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

Given numbers are 989, 440, 138, 255

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

Apply this formula for all numbers.

Step1:

LCM(989, 440) = 435160

GCD(989, 440) = ( 989 x 440 ) / 435160

= 989 / 440

= 989

Step2:

LCM(1, 138) = 138

GCD(1, 138) = ( 1 x 138 ) / 138

= 1 / 138

= 1

Step3:

LCM(1, 255) = 255

GCD(1, 255) = ( 1 x 255 ) / 255

= 1 / 255

= 1

So, Greatest Common Divisor of 989, 440, 138, 255 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 253, 448, 861, 246
• GCD of 244, 950, 231, 856
• GCD of 829, 544, 810, 676
• GCD of 703, 170, 641, 143
• GCD of 571, 351, 124, 418

Given numbers are 989, 440, 138, 255
The greatest common divisor of numbers 989, 440, 138, 255 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 989, 440, 138, 255 is 1.

1. What is the GCD of 989, 440, 138, 255?

GCD of given numbers 989, 440, 138, 255 is 1

2. How to calculate the greatest common divisor of 989, 440, 138, 255?

We can find the highest common divisor of 989, 440, 138, 255 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 989, 440, 138, 255 i.e 1.

3. How can I use the GCD of 989, 440, 138, 255Calculator?

Out the numbers 989, 440, 138, 255 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.