GCD of 409, 391, 138, 889 Calculator

Given Input numbers are 409, 391, 138, 889

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

Divisors of 409 :

The positive integer divisors of 409 that completely divides 409 are.

1, 409

Divisors of 391 :

The positive integer divisors of 391 that completely divides 391 are.

1, 17, 23, 391

Divisors of 138 :

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

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

Divisors of 889 :

The positive integer divisors of 889 that completely divides 889 are.

1, 7, 127, 889

GCD of numbers is the greatest common divisor

So, the GCD (409, 391, 138, 889) = 1.

Given numbers are 409, 391, 138, 889

The list of prime factors of all numbers are

Prime factors of 409 are 409

Prime factors of 391 are 17 x 23

Prime factors of 138 are 2 x 3 x 23

Prime factors of 889 are 7 x 127

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

Given numbers are 409, 391, 138, 889

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

Apply this formula for all numbers.

Step1:

LCM(409, 391) = 159919

GCD(409, 391) = ( 409 x 391 ) / 159919

= 409 / 391

= 409

Step2:

LCM(1, 138) = 138

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

= 1 / 138

= 1

Step3:

LCM(1, 889) = 889

GCD(1, 889) = ( 1 x 889 ) / 889

= 1 / 889

= 1

So, Greatest Common Divisor of 409, 391, 138, 889 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 948, 654, 315, 496
• GCD of 651, 603, 728, 288
• GCD of 550, 920, 911, 455
• GCD of 532, 431, 807, 754
• GCD of 316, 993, 184, 345

Given numbers are 409, 391, 138, 889
The greatest common divisor of numbers 409, 391, 138, 889 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 409, 391, 138, 889 is 1.

1. What is the GCD of 409, 391, 138, 889?

GCD of given numbers 409, 391, 138, 889 is 1

2. How to calculate the greatest common divisor of 409, 391, 138, 889?

We can find the highest common divisor of 409, 391, 138, 889 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 409, 391, 138, 889 i.e 1.

3. How can I use the GCD of 409, 391, 138, 889Calculator?

Out the numbers 409, 391, 138, 889 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.