GCD of 642, 661, 160, 172 Calculator

Given Input numbers are 642, 661, 160, 172

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 661 :

The positive integer divisors of 661 that completely divides 661 are.

1, 661

Divisors of 160 :

The positive integer divisors of 160 that completely divides 160 are.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160

Divisors of 172 :

The positive integer divisors of 172 that completely divides 172 are.

1, 2, 4, 43, 86, 172

GCD of numbers is the greatest common divisor

So, the GCD (642, 661, 160, 172) = 1.

Given numbers are 642, 661, 160, 172

The list of prime factors of all numbers are

Prime factors of 642 are 2 x 3 x 107

Prime factors of 661 are 661

Prime factors of 160 are 2 x 2 x 2 x 2 x 2 x 5

Prime factors of 172 are 2 x 2 x 43

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

Given numbers are 642, 661, 160, 172

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

Apply this formula for all numbers.

Step1:

LCM(642, 661) = 424362

GCD(642, 661) = ( 642 x 661 ) / 424362

= 642 / 661

= 642

Step2:

LCM(1, 160) = 160

GCD(1, 160) = ( 1 x 160 ) / 160

= 1 / 160

= 1

Step3:

LCM(1, 172) = 172

GCD(1, 172) = ( 1 x 172 ) / 172

= 1 / 172

= 1

So, Greatest Common Divisor of 642, 661, 160, 172 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 780, 395, 605, 275
• GCD of 304, 593, 123, 368
• GCD of 808, 343, 100, 640
• GCD of 143, 304, 588, 687
• GCD of 647, 264, 372, 759

Given numbers are 642, 661, 160, 172
The greatest common divisor of numbers 642, 661, 160, 172 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 642, 661, 160, 172 is 1.

1. What is the GCD of 642, 661, 160, 172?

GCD of given numbers 642, 661, 160, 172 is 1

2. How to calculate the greatest common divisor of 642, 661, 160, 172?

We can find the highest common divisor of 642, 661, 160, 172 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, 661, 160, 172 i.e 1.

3. How can I use the GCD of 642, 661, 160, 172Calculator?

Out the numbers 642, 661, 160, 172 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.