Highest Common Factor of 644, 438, 812 using Euclid's algorithm
Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 644, 438, 812 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 644, 438, 812 is 2 the largest number which exactly divides all the numbers i.e. where the remainder is zero. Let us get into the working of this example.
Consider we have numbers 644, 438, 812 and we need to find the HCF of these numbers. To do so, we need to choose the largest integer first and then as per Euclid's Division Lemma a = bq + r where 0 ≤ r ≤ b
Highest common factor (HCF) of 644, 438, 812 is 2.
HCF(644, 438, 812) = 2
HCF of 644, 438, 812 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 644, 438, 812 is 2.
Highest Common Factor of 644,438,812 is 2
Step 1: Since 644 > 438, we apply the division lemma to 644 and 438, to get
644 = 438 x 1 + 206
Step 2: Since the reminder 438 ≠ 0, we apply division lemma to 206 and 438, to get
438 = 206 x 2 + 26
Step 3: We consider the new divisor 206 and the new remainder 26, and apply the division lemma to get
206 = 26 x 7 + 24
We consider the new divisor 26 and the new remainder 24,and apply the division lemma to get
26 = 24 x 1 + 2
We consider the new divisor 24 and the new remainder 2,and apply the division lemma to get
24 = 2 x 12 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 644 and 438 is 2
Notice that 2 = HCF(24,2) = HCF(26,24) = HCF(206,26) = HCF(438,206) = HCF(644,438) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 812 > 2, we apply the division lemma to 812 and 2, to get
812 = 2 x 406 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 2 and 812 is 2
Notice that 2 = HCF(812,2) .
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Frequently Asked Questions on HCF of 644, 438, 812 using Euclid's Algorithm
1. What is the Euclid division algorithm?
Answer: Euclid's Division Algorithm is a technique to compute the Highest Common Factor (HCF) of given positive integers.
2. what is the HCF of 644, 438, 812?
Answer: HCF of 644, 438, 812 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 644, 438, 812 using Euclid's Algorithm?
Answer: For arbitrary numbers 644, 438, 812 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.