Highest Common Factor of 208, 816, 491 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 208, 816, 491 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 208, 816, 491 is 1 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 208, 816, 491 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 208, 816, 491 is 1.
HCF(208, 816, 491) = 1
HCF of 208, 816, 491 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 208, 816, 491 is 1.
Highest Common Factor of 208,816,491 is 1
Step 1: Since 816 > 208, we apply the division lemma to 816 and 208, to get
816 = 208 x 3 + 192
Step 2: Since the reminder 208 ≠ 0, we apply division lemma to 192 and 208, to get
208 = 192 x 1 + 16
Step 3: We consider the new divisor 192 and the new remainder 16, and apply the division lemma to get
192 = 16 x 12 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 16, the HCF of 208 and 816 is 16
Notice that 16 = HCF(192,16) = HCF(208,192) = HCF(816,208) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 491 > 16, we apply the division lemma to 491 and 16, to get
491 = 16 x 30 + 11
Step 2: Since the reminder 16 ≠ 0, we apply division lemma to 11 and 16, to get
16 = 11 x 1 + 5
Step 3: We consider the new divisor 11 and the new remainder 5, and apply the division lemma to get
11 = 5 x 2 + 1
We consider the new divisor 5 and the new remainder 1, and apply the division lemma to get
5 = 1 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 16 and 491 is 1
Notice that 1 = HCF(5,1) = HCF(11,5) = HCF(16,11) = HCF(491,16) .
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Frequently Asked Questions on HCF of 208, 816, 491 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 208, 816, 491?
Answer: HCF of 208, 816, 491 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 208, 816, 491 using Euclid's Algorithm?
Answer: For arbitrary numbers 208, 816, 491 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.