GCD of 642, 169, 385, 315 Calculator

Given Input numbers are 642, 169, 385, 315

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

Divisors of 642 :

The positive integer divisors of 642 that completely divides 642 are.

1, 2, 3, 6, 107, 214, 321, 642

Divisors of 169 :

The positive integer divisors of 169 that completely divides 169 are.

1, 13, 169

Divisors of 385 :

The positive integer divisors of 385 that completely divides 385 are.

1, 5, 7, 11, 35, 55, 77, 385

Divisors of 315 :

The positive integer divisors of 315 that completely divides 315 are.

1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315

GCD of numbers is the greatest common divisor

So, the GCD (642, 169, 385, 315) = 1.

Given numbers are 642, 169, 385, 315

The list of prime factors of all numbers are

Prime factors of 642 are 2 x 3 x 107

Prime factors of 169 are 13 x 13

Prime factors of 385 are 5 x 7 x 11

Prime factors of 315 are 3 x 3 x 5 x 7

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

Given numbers are 642, 169, 385, 315

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

Apply this formula for all numbers.

Step1:

LCM(642, 169) = 108498

GCD(642, 169) = ( 642 x 169 ) / 108498

= 642 / 169

= 642

Step2:

LCM(1, 385) = 385

GCD(1, 385) = ( 1 x 385 ) / 385

= 1 / 385

= 1

Step3:

LCM(1, 315) = 315

GCD(1, 315) = ( 1 x 315 ) / 315

= 1 / 315

= 1

So, Greatest Common Divisor of 642, 169, 385, 315 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 197, 603, 218, 873
• GCD of 984, 576, 368, 653
• GCD of 699, 511, 215, 684
• GCD of 876, 718, 240, 657
• GCD of 545, 818, 693, 567

Given numbers are 642, 169, 385, 315
The greatest common divisor of numbers 642, 169, 385, 315 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 642, 169, 385, 315 is 1.

1. What is the GCD of 642, 169, 385, 315?

GCD of given numbers 642, 169, 385, 315 is 1

2. How to calculate the greatest common divisor of 642, 169, 385, 315?

We can find the highest common divisor of 642, 169, 385, 315 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 642, 169, 385, 315 i.e 1.

3. How can I use the GCD of 642, 169, 385, 315Calculator?

Out the numbers 642, 169, 385, 315 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.