GCD of 153, 390, 646, 358 Calculator

Given Input numbers are 153, 390, 646, 358

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

Divisors of 153 :

The positive integer divisors of 153 that completely divides 153 are.

1, 3, 9, 17, 51, 153

Divisors of 390 :

The positive integer divisors of 390 that completely divides 390 are.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Divisors of 646 :

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

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

Divisors of 358 :

The positive integer divisors of 358 that completely divides 358 are.

1, 2, 179, 358

GCD of numbers is the greatest common divisor

So, the GCD (153, 390, 646, 358) = 1.

Given numbers are 153, 390, 646, 358

The list of prime factors of all numbers are

Prime factors of 153 are 3 x 3 x 17

Prime factors of 390 are 2 x 3 x 5 x 13

Prime factors of 646 are 2 x 17 x 19

Prime factors of 358 are 2 x 179

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

Given numbers are 153, 390, 646, 358

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

Apply this formula for all numbers.

Step1:

LCM(153, 390) = 19890

GCD(153, 390) = ( 153 x 390 ) / 19890

= 153 / 390

= 153

Step2:

LCM(3, 646) = 1938

GCD(3, 646) = ( 3 x 646 ) / 1938

= 3 / 646

= 3

Step3:

LCM(1, 358) = 358

GCD(1, 358) = ( 1 x 358 ) / 358

= 1 / 358

= 1

So, Greatest Common Divisor of 153, 390, 646, 358 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 625, 811, 573, 291
• GCD of 989, 391, 895, 609
• GCD of 405, 225, 304, 401
• GCD of 965, 276, 513, 911
• GCD of 527, 218, 847, 897

Given numbers are 153, 390, 646, 358
The greatest common divisor of numbers 153, 390, 646, 358 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 153, 390, 646, 358 is 1.

1. What is the GCD of 153, 390, 646, 358?

GCD of given numbers 153, 390, 646, 358 is 1

2. How to calculate the greatest common divisor of 153, 390, 646, 358?

We can find the highest common divisor of 153, 390, 646, 358 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 153, 390, 646, 358 i.e 1.

3. How can I use the GCD of 153, 390, 646, 358Calculator?

Out the numbers 153, 390, 646, 358 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.