GCD of 561, 502, 126, 840 Calculator

Given Input numbers are 561, 502, 126, 840

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

Divisors of 561 :

The positive integer divisors of 561 that completely divides 561 are.

1, 3, 11, 17, 33, 51, 187, 561

Divisors of 502 :

The positive integer divisors of 502 that completely divides 502 are.

1, 2, 251, 502

Divisors of 126 :

The positive integer divisors of 126 that completely divides 126 are.

1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126

Divisors of 840 :

The positive integer divisors of 840 that completely divides 840 are.

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

GCD of numbers is the greatest common divisor

So, the GCD (561, 502, 126, 840) = 1.

Given numbers are 561, 502, 126, 840

The list of prime factors of all numbers are

Prime factors of 561 are 3 x 11 x 17

Prime factors of 502 are 2 x 251

Prime factors of 126 are 2 x 3 x 3 x 7

Prime factors of 840 are 2 x 2 x 2 x 3 x 5 x 7

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

Given numbers are 561, 502, 126, 840

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

Apply this formula for all numbers.

Step1:

LCM(561, 502) = 281622

GCD(561, 502) = ( 561 x 502 ) / 281622

= 561 / 502

= 561

Step2:

LCM(1, 126) = 126

GCD(1, 126) = ( 1 x 126 ) / 126

= 1 / 126

= 1

Step3:

LCM(1, 840) = 840

GCD(1, 840) = ( 1 x 840 ) / 840

= 1 / 840

= 1

So, Greatest Common Divisor of 561, 502, 126, 840 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 249, 817, 576, 996
• GCD of 707, 674, 184, 437
• GCD of 418, 475, 261, 995
• GCD of 964, 528, 775, 942
• GCD of 884, 583, 893, 263

Given numbers are 561, 502, 126, 840
The greatest common divisor of numbers 561, 502, 126, 840 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 561, 502, 126, 840 is 1.

1. What is the GCD of 561, 502, 126, 840?

GCD of given numbers 561, 502, 126, 840 is 1

2. How to calculate the greatest common divisor of 561, 502, 126, 840?

We can find the highest common divisor of 561, 502, 126, 840 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 561, 502, 126, 840 i.e 1.

3. How can I use the GCD of 561, 502, 126, 840Calculator?

Out the numbers 561, 502, 126, 840 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.