GCD of 378, 646, 166, 643 Calculator

Given Input numbers are 378, 646, 166, 643

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

Divisors of 378 :

The positive integer divisors of 378 that completely divides 378 are.

1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378

Divisors of 646 :

The positive integer divisors of 646 that completely divides 646 are.

1, 2, 17, 19, 34, 38, 323, 646

Divisors of 166 :

The positive integer divisors of 166 that completely divides 166 are.

1, 2, 83, 166

Divisors of 643 :

The positive integer divisors of 643 that completely divides 643 are.

1, 643

GCD of numbers is the greatest common divisor

So, the GCD (378, 646, 166, 643) = 1.

Given numbers are 378, 646, 166, 643

The list of prime factors of all numbers are

Prime factors of 378 are 2 x 3 x 3 x 3 x 7

Prime factors of 646 are 2 x 17 x 19

Prime factors of 166 are 2 x 83

Prime factors of 643 are 643

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

Given numbers are 378, 646, 166, 643

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

Apply this formula for all numbers.

Step1:

LCM(378, 646) = 122094

GCD(378, 646) = ( 378 x 646 ) / 122094

= 378 / 646

= 378

Step2:

LCM(2, 166) = 166

GCD(2, 166) = ( 2 x 166 ) / 166

= 2 / 166

= 2

Step3:

LCM(2, 643) = 1286

GCD(2, 643) = ( 2 x 643 ) / 1286

= 2 / 643

= 2

So, Greatest Common Divisor of 378, 646, 166, 643 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 202, 288, 173, 281
• GCD of 925, 310, 490, 562
• GCD of 905, 303, 967, 809
• GCD of 470, 950, 549, 516
• GCD of 106, 776, 742, 621

Given numbers are 378, 646, 166, 643
The greatest common divisor of numbers 378, 646, 166, 643 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 378, 646, 166, 643 is 1.

1. What is the GCD of 378, 646, 166, 643?

GCD of given numbers 378, 646, 166, 643 is 1

2. How to calculate the greatest common divisor of 378, 646, 166, 643?

We can find the highest common divisor of 378, 646, 166, 643 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 378, 646, 166, 643 i.e 1.

3. How can I use the GCD of 378, 646, 166, 643Calculator?

Out the numbers 378, 646, 166, 643 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.