GCD of 402, 649, 168, 220 Calculator

Given Input numbers are 402, 649, 168, 220

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

Divisors of 402 :

The positive integer divisors of 402 that completely divides 402 are.

1, 2, 3, 6, 67, 134, 201, 402

Divisors of 649 :

The positive integer divisors of 649 that completely divides 649 are.

1, 11, 59, 649

Divisors of 168 :

The positive integer divisors of 168 that completely divides 168 are.

1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168

Divisors of 220 :

The positive integer divisors of 220 that completely divides 220 are.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220

GCD of numbers is the greatest common divisor

So, the GCD (402, 649, 168, 220) = 1.

Given numbers are 402, 649, 168, 220

The list of prime factors of all numbers are

Prime factors of 402 are 2 x 3 x 67

Prime factors of 649 are 11 x 59

Prime factors of 168 are 2 x 2 x 2 x 3 x 7

Prime factors of 220 are 2 x 2 x 5 x 11

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

Given numbers are 402, 649, 168, 220

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

Apply this formula for all numbers.

Step1:

LCM(402, 649) = 260898

GCD(402, 649) = ( 402 x 649 ) / 260898

= 402 / 649

= 402

Step2:

LCM(1, 168) = 168

GCD(1, 168) = ( 1 x 168 ) / 168

= 1 / 168

= 1

Step3:

LCM(1, 220) = 220

GCD(1, 220) = ( 1 x 220 ) / 220

= 1 / 220

= 1

So, Greatest Common Divisor of 402, 649, 168, 220 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 626, 639, 812, 499
• GCD of 622, 698, 103, 459
• GCD of 284, 635, 895, 482
• GCD of 312, 731, 535, 216
• GCD of 484, 401, 344, 947

Given numbers are 402, 649, 168, 220
The greatest common divisor of numbers 402, 649, 168, 220 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 402, 649, 168, 220 is 1.

1. What is the GCD of 402, 649, 168, 220?

GCD of given numbers 402, 649, 168, 220 is 1

2. How to calculate the greatest common divisor of 402, 649, 168, 220?

We can find the highest common divisor of 402, 649, 168, 220 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 402, 649, 168, 220 i.e 1.

3. How can I use the GCD of 402, 649, 168, 220Calculator?

Out the numbers 402, 649, 168, 220 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.