Online GCD Calculator is useful to find the GCD of 686, 862, 561, 148 quickly. Get the easiest ways to solve the greatest common divisor of 686, 862, 561, 148 i.e 1 in different methods as follows.
Given Input numbers are 686, 862, 561, 148
In the factoring method, we have to find the divisors of all numbers
Divisors of 686 :
The positive integer divisors of 686 that completely divides 686 are.
1, 2, 7, 14, 49, 98, 343, 686
Divisors of 862 :
The positive integer divisors of 862 that completely divides 862 are.
1, 2, 431, 862
Divisors of 561 :
The positive integer divisors of 561 that completely divides 561 are.
1, 3, 11, 17, 33, 51, 187, 561
Divisors of 148 :
The positive integer divisors of 148 that completely divides 148 are.
1, 2, 4, 37, 74, 148
GCD of numbers is the greatest common divisor
So, the GCD (686, 862, 561, 148) = 1.
Given numbers are 686, 862, 561, 148
The list of prime factors of all numbers are
Prime factors of 686 are 2 x 7 x 7 x 7
Prime factors of 862 are 2 x 431
Prime factors of 561 are 3 x 11 x 17
Prime factors of 148 are 2 x 2 x 37
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 686, 862, 561, 148
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(686, 862) = 295666
GCD(686, 862) = ( 686 x 862 ) / 295666
= 686 / 862
= 686
Step2:
LCM(2, 561) = 1122
GCD(2, 561) = ( 2 x 561 ) / 1122
= 2 / 561
= 2
Step3:
LCM(1, 148) = 148
GCD(1, 148) = ( 1 x 148 ) / 148
= 1 / 148
= 1
So, Greatest Common Divisor of 686, 862, 561, 148 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 686, 862, 561, 148
The greatest common divisor of numbers 686, 862, 561, 148 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 686, 862, 561, 148 is 1.
1. What is the GCD of 686, 862, 561, 148?
GCD of given numbers 686, 862, 561, 148 is 1
2. How to calculate the greatest common divisor of 686, 862, 561, 148?
We can find the highest common divisor of 686, 862, 561, 148 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 686, 862, 561, 148 i.e 1.
3. How can I use the GCD of 686, 862, 561, 148Calculator?
Out the numbers 686, 862, 561, 148 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.