Online GCD Calculator is useful to find the GCD of 642, 258, 67, 387 quickly. Get the easiest ways to solve the greatest common divisor of 642, 258, 67, 387 i.e 1 in different methods as follows.
Given Input numbers are 642, 258, 67, 387
In the factoring method, we have to find the divisors of all numbers
Divisors of 642 :
The positive integer divisors of 642 that completely divides 642 are.
1, 2, 3, 6, 107, 214, 321, 642
Divisors of 258 :
The positive integer divisors of 258 that completely divides 258 are.
1, 2, 3, 6, 43, 86, 129, 258
Divisors of 67 :
The positive integer divisors of 67 that completely divides 67 are.
1, 67
Divisors of 387 :
The positive integer divisors of 387 that completely divides 387 are.
1, 3, 9, 43, 129, 387
GCD of numbers is the greatest common divisor
So, the GCD (642, 258, 67, 387) = 1.
Given numbers are 642, 258, 67, 387
The list of prime factors of all numbers are
Prime factors of 642 are 2 x 3 x 107
Prime factors of 258 are 2 x 3 x 43
Prime factors of 67 are 67
Prime factors of 387 are 3 x 3 x 43
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 642, 258, 67, 387
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(642, 258) = 27606
GCD(642, 258) = ( 642 x 258 ) / 27606
= 642 / 258
= 642
Step2:
LCM(6, 67) = 402
GCD(6, 67) = ( 6 x 67 ) / 402
= 6 / 67
= 6
Step3:
LCM(1, 387) = 387
GCD(1, 387) = ( 1 x 387 ) / 387
= 1 / 387
= 1
So, Greatest Common Divisor of 642, 258, 67, 387 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 642, 258, 67, 387
The greatest common divisor of numbers 642, 258, 67, 387 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 642, 258, 67, 387 is 1.
1. What is the GCD of 642, 258, 67, 387?
GCD of given numbers 642, 258, 67, 387 is 1
2. How to calculate the greatest common divisor of 642, 258, 67, 387?
We can find the highest common divisor of 642, 258, 67, 387 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 642, 258, 67, 387 i.e 1.
3. How can I use the GCD of 642, 258, 67, 387Calculator?
Out the numbers 642, 258, 67, 387 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.