Highest Common Factor of 644, 976, 210 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, 976, 210 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 644, 976, 210 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, 976, 210 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, 976, 210 is 2.
HCF(644, 976, 210) = 2
HCF of 644, 976, 210 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, 976, 210 is 2.
Highest Common Factor of 644,976,210 is 2
Step 1: Since 976 > 644, we apply the division lemma to 976 and 644, to get
976 = 644 x 1 + 332
Step 2: Since the reminder 644 ≠ 0, we apply division lemma to 332 and 644, to get
644 = 332 x 1 + 312
Step 3: We consider the new divisor 332 and the new remainder 312, and apply the division lemma to get
332 = 312 x 1 + 20
We consider the new divisor 312 and the new remainder 20,and apply the division lemma to get
312 = 20 x 15 + 12
We consider the new divisor 20 and the new remainder 12,and apply the division lemma to get
20 = 12 x 1 + 8
We consider the new divisor 12 and the new remainder 8,and apply the division lemma to get
12 = 8 x 1 + 4
We consider the new divisor 8 and the new remainder 4,and apply the division lemma to get
8 = 4 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 4, the HCF of 644 and 976 is 4
Notice that 4 = HCF(8,4) = HCF(12,8) = HCF(20,12) = HCF(312,20) = HCF(332,312) = HCF(644,332) = HCF(976,644) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 210 > 4, we apply the division lemma to 210 and 4, to get
210 = 4 x 52 + 2
Step 2: Since the reminder 4 ≠ 0, we apply division lemma to 2 and 4, to get
4 = 2 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 4 and 210 is 2
Notice that 2 = HCF(4,2) = HCF(210,4) .
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Frequently Asked Questions on HCF of 644, 976, 210 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, 976, 210?
Answer: HCF of 644, 976, 210 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 644, 976, 210 using Euclid's Algorithm?
Answer: For arbitrary numbers 644, 976, 210 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.