Online GCD Calculator is useful to find the GCD of 645, 669, 435, 100 quickly. Get the easiest ways to solve the greatest common divisor of 645, 669, 435, 100 i.e 1 in different methods as follows.
Given Input numbers are 645, 669, 435, 100
In the factoring method, we have to find the divisors of all numbers
Divisors of 645 :
The positive integer divisors of 645 that completely divides 645 are.
1, 3, 5, 15, 43, 129, 215, 645
Divisors of 669 :
The positive integer divisors of 669 that completely divides 669 are.
1, 3, 223, 669
Divisors of 435 :
The positive integer divisors of 435 that completely divides 435 are.
1, 3, 5, 15, 29, 87, 145, 435
Divisors of 100 :
The positive integer divisors of 100 that completely divides 100 are.
1, 2, 4, 5, 10, 20, 25, 50, 100
GCD of numbers is the greatest common divisor
So, the GCD (645, 669, 435, 100) = 1.
Given numbers are 645, 669, 435, 100
The list of prime factors of all numbers are
Prime factors of 645 are 3 x 5 x 43
Prime factors of 669 are 3 x 223
Prime factors of 435 are 3 x 5 x 29
Prime factors of 100 are 2 x 2 x 5 x 5
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 645, 669, 435, 100
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(645, 669) = 143835
GCD(645, 669) = ( 645 x 669 ) / 143835
= 645 / 669
= 645
Step2:
LCM(3, 435) = 435
GCD(3, 435) = ( 3 x 435 ) / 435
= 3 / 435
= 3
Step3:
LCM(3, 100) = 300
GCD(3, 100) = ( 3 x 100 ) / 300
= 3 / 100
= 3
So, Greatest Common Divisor of 645, 669, 435, 100 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 645, 669, 435, 100
The greatest common divisor of numbers 645, 669, 435, 100 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 645, 669, 435, 100 is 1.
1. What is the GCD of 645, 669, 435, 100?
GCD of given numbers 645, 669, 435, 100 is 1
2. How to calculate the greatest common divisor of 645, 669, 435, 100?
We can find the highest common divisor of 645, 669, 435, 100 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 645, 669, 435, 100 i.e 1.
3. How can I use the GCD of 645, 669, 435, 100Calculator?
Out the numbers 645, 669, 435, 100 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.