Online GCD Calculator is useful to find the GCD of 686, 220, 407 quickly. Get the easiest ways to solve the greatest common divisor of 686, 220, 407 i.e 1 in different methods as follows.
Given Input numbers are 686, 220, 407
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 220 :
The positive integer divisors of 220 that completely divides 220 are.
1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
Divisors of 407 :
The positive integer divisors of 407 that completely divides 407 are.
1, 11, 37, 407
GCD of numbers is the greatest common divisor
So, the GCD (686, 220, 407) = 1.
Given numbers are 686, 220, 407
The list of prime factors of all numbers are
Prime factors of 686 are 2 x 7 x 7 x 7
Prime factors of 220 are 2 x 2 x 5 x 11
Prime factors of 407 are 11 x 37
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 686, 220, 407
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(686, 220) = 75460
GCD(686, 220) = ( 686 x 220 ) / 75460
= 686 / 220
= 686
Step2:
LCM(2, 407) = 814
GCD(2, 407) = ( 2 x 407 ) / 814
= 2 / 407
= 2
So, Greatest Common Divisor of 686, 220, 407 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 686, 220, 407
The greatest common divisor of numbers 686, 220, 407 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 686, 220, 407 is 1.
1. What is the GCD of 686, 220, 407?
GCD of given numbers 686, 220, 407 is 1
2. How to calculate the greatest common divisor of 686, 220, 407?
We can find the highest common divisor of 686, 220, 407 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, 220, 407 i.e 1.
3. How can I use the GCD of 686, 220, 407Calculator?
Out the numbers 686, 220, 407 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.