GCD of 168, 690, 940, 643 Calculator

Given Input numbers are 168, 690, 940, 643

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

Divisors of 168 :

The positive integer divisors of 168 that completely divides 168 are.

1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168

Divisors of 690 :

The positive integer divisors of 690 that completely divides 690 are.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

Divisors of 940 :

The positive integer divisors of 940 that completely divides 940 are.

1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940

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 (168, 690, 940, 643) = 1.

Given numbers are 168, 690, 940, 643

The list of prime factors of all numbers are

Prime factors of 168 are 2 x 2 x 2 x 3 x 7

Prime factors of 690 are 2 x 3 x 5 x 23

Prime factors of 940 are 2 x 2 x 5 x 47

Prime factors of 643 are 643

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

Given numbers are 168, 690, 940, 643

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

Apply this formula for all numbers.

Step1:

LCM(168, 690) = 19320

GCD(168, 690) = ( 168 x 690 ) / 19320

= 168 / 690

= 168

Step2:

LCM(6, 940) = 2820

GCD(6, 940) = ( 6 x 940 ) / 2820

= 6 / 940

= 6

Step3:

LCM(2, 643) = 1286

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

= 2 / 643

= 2

So, Greatest Common Divisor of 168, 690, 940, 643 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 930, 410, 949, 850
• GCD of 237, 985, 912, 213
• GCD of 719, 354, 249, 929
• GCD of 677, 983, 959, 515
• GCD of 578, 651, 992, 344

Given numbers are 168, 690, 940, 643
The greatest common divisor of numbers 168, 690, 940, 643 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 168, 690, 940, 643 is 1.

1. What is the GCD of 168, 690, 940, 643?

GCD of given numbers 168, 690, 940, 643 is 1

2. How to calculate the greatest common divisor of 168, 690, 940, 643?

We can find the highest common divisor of 168, 690, 940, 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 168, 690, 940, 643 i.e 1.

3. How can I use the GCD of 168, 690, 940, 643Calculator?

Out the numbers 168, 690, 940, 643 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.