GCD of 402, 775, 123, 638 Calculator

Given Input numbers are 402, 775, 123, 638

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

Divisors of 402 :

The positive integer divisors of 402 that completely divides 402 are.

1, 2, 3, 6, 67, 134, 201, 402

Divisors of 775 :

The positive integer divisors of 775 that completely divides 775 are.

1, 5, 25, 31, 155, 775

Divisors of 123 :

The positive integer divisors of 123 that completely divides 123 are.

1, 3, 41, 123

Divisors of 638 :

The positive integer divisors of 638 that completely divides 638 are.

1, 2, 11, 22, 29, 58, 319, 638

GCD of numbers is the greatest common divisor

So, the GCD (402, 775, 123, 638) = 1.

Given numbers are 402, 775, 123, 638

The list of prime factors of all numbers are

Prime factors of 402 are 2 x 3 x 67

Prime factors of 775 are 5 x 5 x 31

Prime factors of 123 are 3 x 41

Prime factors of 638 are 2 x 11 x 29

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

Given numbers are 402, 775, 123, 638

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

Apply this formula for all numbers.

Step1:

LCM(402, 775) = 311550

GCD(402, 775) = ( 402 x 775 ) / 311550

= 402 / 775

= 402

Step2:

LCM(1, 123) = 123

GCD(1, 123) = ( 1 x 123 ) / 123

= 1 / 123

= 1

Step3:

LCM(1, 638) = 638

GCD(1, 638) = ( 1 x 638 ) / 638

= 1 / 638

= 1

So, Greatest Common Divisor of 402, 775, 123, 638 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 337, 247, 123, 708
• GCD of 427, 912, 238, 342
• GCD of 876, 936, 659, 333
• GCD of 416, 141, 792, 730
• GCD of 507, 472, 484, 476

Given numbers are 402, 775, 123, 638
The greatest common divisor of numbers 402, 775, 123, 638 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 402, 775, 123, 638 is 1.

1. What is the GCD of 402, 775, 123, 638?

GCD of given numbers 402, 775, 123, 638 is 1

2. How to calculate the greatest common divisor of 402, 775, 123, 638?

We can find the highest common divisor of 402, 775, 123, 638 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 402, 775, 123, 638 i.e 1.

3. How can I use the GCD of 402, 775, 123, 638Calculator?

Out the numbers 402, 775, 123, 638 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.