GCD of 661, 160, 424, 390 Calculator

Given Input numbers are 661, 160, 424, 390

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

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 424 :

The positive integer divisors of 424 that completely divides 424 are.

1, 2, 4, 8, 53, 106, 212, 424

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

GCD of numbers is the greatest common divisor

So, the GCD (661, 160, 424, 390) = 1.

Given numbers are 661, 160, 424, 390

The list of prime factors of all numbers are

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 424 are 2 x 2 x 2 x 53

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

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

Given numbers are 661, 160, 424, 390

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

Apply this formula for all numbers.

Step1:

LCM(661, 160) = 105760

GCD(661, 160) = ( 661 x 160 ) / 105760

= 661 / 160

= 661

Step2:

LCM(1, 424) = 424

GCD(1, 424) = ( 1 x 424 ) / 424

= 1 / 424

= 1

Step3:

LCM(1, 390) = 390

GCD(1, 390) = ( 1 x 390 ) / 390

= 1 / 390

= 1

So, Greatest Common Divisor of 661, 160, 424, 390 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 495, 437, 580, 965
• GCD of 125, 761, 613, 185
• GCD of 816, 955, 800, 628
• GCD of 550, 214, 788, 498
• GCD of 938, 118, 605, 620

Given numbers are 661, 160, 424, 390
The greatest common divisor of numbers 661, 160, 424, 390 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 661, 160, 424, 390 is 1.

1. What is the GCD of 661, 160, 424, 390?

GCD of given numbers 661, 160, 424, 390 is 1

2. How to calculate the greatest common divisor of 661, 160, 424, 390?

We can find the highest common divisor of 661, 160, 424, 390 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 661, 160, 424, 390 i.e 1.

3. How can I use the GCD of 661, 160, 424, 390Calculator?

Out the numbers 661, 160, 424, 390 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.