Online GCD Calculator is useful to find the GCD of 690, 253, 111, 638 quickly. Get the easiest ways to solve the greatest common divisor of 690, 253, 111, 638 i.e 1 in different methods as follows.
Given Input numbers are 690, 253, 111, 638
In the factoring method, we have to find the divisors of all numbers
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
Divisors of 253 :
The positive integer divisors of 253 that completely divides 253 are.
1, 11, 23, 253
Divisors of 111 :
The positive integer divisors of 111 that completely divides 111 are.
1, 3, 37, 111
Divisors of 638 :
The positive integer divisors of 638 that completely divides 638 are.
1, 2, 11, 22, 29, 58, 319, 638
GCD of numbers is the greatest common divisor
So, the GCD (690, 253, 111, 638) = 1.
Given numbers are 690, 253, 111, 638
The list of prime factors of all numbers are
Prime factors of 690 are 2 x 3 x 5 x 23
Prime factors of 253 are 11 x 23
Prime factors of 111 are 3 x 37
Prime factors of 638 are 2 x 11 x 29
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 690, 253, 111, 638
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(690, 253) = 7590
GCD(690, 253) = ( 690 x 253 ) / 7590
= 690 / 253
= 690
Step2:
LCM(23, 111) = 2553
GCD(23, 111) = ( 23 x 111 ) / 2553
= 23 / 111
= 23
Step3:
LCM(1, 638) = 638
GCD(1, 638) = ( 1 x 638 ) / 638
= 1 / 638
= 1
So, Greatest Common Divisor of 690, 253, 111, 638 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 690, 253, 111, 638
The greatest common divisor of numbers 690, 253, 111, 638 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 690, 253, 111, 638 is 1.
1. What is the GCD of 690, 253, 111, 638?
GCD of given numbers 690, 253, 111, 638 is 1
2. How to calculate the greatest common divisor of 690, 253, 111, 638?
We can find the highest common divisor of 690, 253, 111, 638 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 690, 253, 111, 638 i.e 1.
3. How can I use the GCD of 690, 253, 111, 638Calculator?
Out the numbers 690, 253, 111, 638 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.