Online GCD Calculator is useful to find the GCD of 642, 564, 460, 840 quickly. Get the easiest ways to solve the greatest common divisor of 642, 564, 460, 840 i.e 2 in different methods as follows.
Given Input numbers are 642, 564, 460, 840
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 564 :
The positive integer divisors of 564 that completely divides 564 are.
1, 2, 3, 4, 6, 12, 47, 94, 141, 188, 282, 564
Divisors of 460 :
The positive integer divisors of 460 that completely divides 460 are.
1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460
Divisors of 840 :
The positive integer divisors of 840 that completely divides 840 are.
1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
GCD of numbers is the greatest common divisor
So, the GCD (642, 564, 460, 840) = 2.
Given numbers are 642, 564, 460, 840
The list of prime factors of all numbers are
Prime factors of 642 are 2 x 3 x 107
Prime factors of 564 are 2 x 2 x 3 x 47
Prime factors of 460 are 2 x 2 x 5 x 23
Prime factors of 840 are 2 x 2 x 2 x 3 x 5 x 7
The highest common occurrence is 21
Therefore, GCD of 642, 564, 460, 840 is 2.
Given numbers are 642, 564, 460, 840
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(642, 564) = 60348
GCD(642, 564) = ( 642 x 564 ) / 60348
= 642 / 564
= 642
Step2:
LCM(6, 460) = 1380
GCD(6, 460) = ( 6 x 460 ) / 1380
= 6 / 460
= 6
Step3:
LCM(2, 840) = 840
GCD(2, 840) = ( 2 x 840 ) / 840
= 2 / 840
= 2
So, Greatest Common Divisor of 642, 564, 460, 840 is 2
Here are some samples of GCD of Numbers calculations.
Given numbers are 642, 564, 460, 840
The greatest common divisor of numbers 642, 564, 460, 840 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 642, 564, 460, 840 is 2.
1. What is the GCD of 642, 564, 460, 840?
GCD of given numbers 642, 564, 460, 840 is 2
2. How to calculate the greatest common divisor of 642, 564, 460, 840?
We can find the highest common divisor of 642, 564, 460, 840 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, 564, 460, 840 i.e 2.
3. How can I use the GCD of 642, 564, 460, 840Calculator?
Out the numbers 642, 564, 460, 840 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.