GCD of 690, 135, 645, 407 Calculator

Given Input numbers are 690, 135, 645, 407

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

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 135 :

The positive integer divisors of 135 that completely divides 135 are.

1, 3, 5, 9, 15, 27, 45, 135

Divisors of 645 :

The positive integer divisors of 645 that completely divides 645 are.

1, 3, 5, 15, 43, 129, 215, 645

Divisors of 407 :

The positive integer divisors of 407 that completely divides 407 are.

1, 11, 37, 407

GCD of numbers is the greatest common divisor

So, the GCD (690, 135, 645, 407) = 1.

Given numbers are 690, 135, 645, 407

The list of prime factors of all numbers are

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

Prime factors of 135 are 3 x 3 x 3 x 5

Prime factors of 645 are 3 x 5 x 43

Prime factors of 407 are 11 x 37

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

Given numbers are 690, 135, 645, 407

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

Apply this formula for all numbers.

Step1:

LCM(690, 135) = 6210

GCD(690, 135) = ( 690 x 135 ) / 6210

= 690 / 135

= 690

Step2:

LCM(15, 645) = 645

GCD(15, 645) = ( 15 x 645 ) / 645

= 15 / 645

= 15

Step3:

LCM(15, 407) = 6105

GCD(15, 407) = ( 15 x 407 ) / 6105

= 15 / 407

= 15

So, Greatest Common Divisor of 690, 135, 645, 407 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 249, 907, 554, 921
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Given numbers are 690, 135, 645, 407
The greatest common divisor of numbers 690, 135, 645, 407 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 690, 135, 645, 407 is 1.

1. What is the GCD of 690, 135, 645, 407?

GCD of given numbers 690, 135, 645, 407 is 1

2. How to calculate the greatest common divisor of 690, 135, 645, 407?

We can find the highest common divisor of 690, 135, 645, 407 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 690, 135, 645, 407 i.e 1.

3. How can I use the GCD of 690, 135, 645, 407Calculator?

Out the numbers 690, 135, 645, 407 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.