Online GCD Calculator is useful to find the GCD of 784, 147, 77, 680 quickly. Get the easiest ways to solve the greatest common divisor of 784, 147, 77, 680 i.e 1 in different methods as follows.
Given Input numbers are 784, 147, 77, 680
In the factoring method, we have to find the divisors of all numbers
Divisors of 784 :
The positive integer divisors of 784 that completely divides 784 are.
1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784
Divisors of 147 :
The positive integer divisors of 147 that completely divides 147 are.
1, 3, 7, 21, 49, 147
Divisors of 77 :
The positive integer divisors of 77 that completely divides 77 are.
1, 7, 11, 77
Divisors of 680 :
The positive integer divisors of 680 that completely divides 680 are.
1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680
GCD of numbers is the greatest common divisor
So, the GCD (784, 147, 77, 680) = 1.
Given numbers are 784, 147, 77, 680
The list of prime factors of all numbers are
Prime factors of 784 are 2 x 2 x 2 x 2 x 7 x 7
Prime factors of 147 are 3 x 7 x 7
Prime factors of 77 are 7 x 11
Prime factors of 680 are 2 x 2 x 2 x 5 x 17
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 784, 147, 77, 680
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(784, 147) = 2352
GCD(784, 147) = ( 784 x 147 ) / 2352
= 784 / 147
= 784
Step2:
LCM(49, 77) = 539
GCD(49, 77) = ( 49 x 77 ) / 539
= 49 / 77
= 49
Step3:
LCM(7, 680) = 4760
GCD(7, 680) = ( 7 x 680 ) / 4760
= 7 / 680
= 7
So, Greatest Common Divisor of 784, 147, 77, 680 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 784, 147, 77, 680
The greatest common divisor of numbers 784, 147, 77, 680 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 784, 147, 77, 680 is 1.
1. What is the GCD of 784, 147, 77, 680?
GCD of given numbers 784, 147, 77, 680 is 1
2. How to calculate the greatest common divisor of 784, 147, 77, 680?
We can find the highest common divisor of 784, 147, 77, 680 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 784, 147, 77, 680 i.e 1.
3. How can I use the GCD of 784, 147, 77, 680Calculator?
Out the numbers 784, 147, 77, 680 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.