Online GCD Calculator is useful to find the GCD of 639, 371, 615, 402 quickly. Get the easiest ways to solve the greatest common divisor of 639, 371, 615, 402 i.e 1 in different methods as follows.
Given Input numbers are 639, 371, 615, 402
In the factoring method, we have to find the divisors of all numbers
Divisors of 639 :
The positive integer divisors of 639 that completely divides 639 are.
1, 3, 9, 71, 213, 639
Divisors of 371 :
The positive integer divisors of 371 that completely divides 371 are.
1, 7, 53, 371
Divisors of 615 :
The positive integer divisors of 615 that completely divides 615 are.
1, 3, 5, 15, 41, 123, 205, 615
Divisors of 402 :
The positive integer divisors of 402 that completely divides 402 are.
1, 2, 3, 6, 67, 134, 201, 402
GCD of numbers is the greatest common divisor
So, the GCD (639, 371, 615, 402) = 1.
Given numbers are 639, 371, 615, 402
The list of prime factors of all numbers are
Prime factors of 639 are 3 x 3 x 71
Prime factors of 371 are 7 x 53
Prime factors of 615 are 3 x 5 x 41
Prime factors of 402 are 2 x 3 x 67
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 639, 371, 615, 402
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(639, 371) = 237069
GCD(639, 371) = ( 639 x 371 ) / 237069
= 639 / 371
= 639
Step2:
LCM(1, 615) = 615
GCD(1, 615) = ( 1 x 615 ) / 615
= 1 / 615
= 1
Step3:
LCM(1, 402) = 402
GCD(1, 402) = ( 1 x 402 ) / 402
= 1 / 402
= 1
So, Greatest Common Divisor of 639, 371, 615, 402 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 639, 371, 615, 402
The greatest common divisor of numbers 639, 371, 615, 402 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 639, 371, 615, 402 is 1.
1. What is the GCD of 639, 371, 615, 402?
GCD of given numbers 639, 371, 615, 402 is 1
2. How to calculate the greatest common divisor of 639, 371, 615, 402?
We can find the highest common divisor of 639, 371, 615, 402 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 639, 371, 615, 402 i.e 1.
3. How can I use the GCD of 639, 371, 615, 402Calculator?
Out the numbers 639, 371, 615, 402 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.