Online GCD Calculator is useful to find the GCD of 145, 676, 210, 690 quickly. Get the easiest ways to solve the greatest common divisor of 145, 676, 210, 690 i.e 1 in different methods as follows.
Given Input numbers are 145, 676, 210, 690
In the factoring method, we have to find the divisors of all numbers
Divisors of 145 :
The positive integer divisors of 145 that completely divides 145 are.
1, 5, 29, 145
Divisors of 676 :
The positive integer divisors of 676 that completely divides 676 are.
1, 2, 4, 13, 26, 52, 169, 338, 676
Divisors of 210 :
The positive integer divisors of 210 that completely divides 210 are.
1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210
Divisors of 690 :
The positive integer divisors of 690 that completely divides 690 are.
1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
GCD of numbers is the greatest common divisor
So, the GCD (145, 676, 210, 690) = 1.
Given numbers are 145, 676, 210, 690
The list of prime factors of all numbers are
Prime factors of 145 are 5 x 29
Prime factors of 676 are 2 x 2 x 13 x 13
Prime factors of 210 are 2 x 3 x 5 x 7
Prime factors of 690 are 2 x 3 x 5 x 23
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 145, 676, 210, 690
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(145, 676) = 98020
GCD(145, 676) = ( 145 x 676 ) / 98020
= 145 / 676
= 145
Step2:
LCM(1, 210) = 210
GCD(1, 210) = ( 1 x 210 ) / 210
= 1 / 210
= 1
Step3:
LCM(1, 690) = 690
GCD(1, 690) = ( 1 x 690 ) / 690
= 1 / 690
= 1
So, Greatest Common Divisor of 145, 676, 210, 690 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 145, 676, 210, 690
The greatest common divisor of numbers 145, 676, 210, 690 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 145, 676, 210, 690 is 1.
1. What is the GCD of 145, 676, 210, 690?
GCD of given numbers 145, 676, 210, 690 is 1
2. How to calculate the greatest common divisor of 145, 676, 210, 690?
We can find the highest common divisor of 145, 676, 210, 690 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 145, 676, 210, 690 i.e 1.
3. How can I use the GCD of 145, 676, 210, 690Calculator?
Out the numbers 145, 676, 210, 690 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.