Highest Common Factor of 210, 791 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 210, 791 i.e. 7 the largest integer that leaves a remainder zero for all numbers.
HCF of 210, 791 is 7 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 210, 791 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 210, 791 is 7.
HCF(210, 791) = 7
HCF of 210, 791 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 210, 791 is 7.
Highest Common Factor of 210,791 is 7
Step 1: Since 791 > 210, we apply the division lemma to 791 and 210, to get
791 = 210 x 3 + 161
Step 2: Since the reminder 210 ≠ 0, we apply division lemma to 161 and 210, to get
210 = 161 x 1 + 49
Step 3: We consider the new divisor 161 and the new remainder 49, and apply the division lemma to get
161 = 49 x 3 + 14
We consider the new divisor 49 and the new remainder 14,and apply the division lemma to get
49 = 14 x 3 + 7
We consider the new divisor 14 and the new remainder 7,and apply the division lemma to get
14 = 7 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 210 and 791 is 7
Notice that 7 = HCF(14,7) = HCF(49,14) = HCF(161,49) = HCF(210,161) = HCF(791,210) .
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Frequently Asked Questions on HCF of 210, 791 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 210, 791?
Answer: HCF of 210, 791 is 7 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 210, 791 using Euclid's Algorithm?
Answer: For arbitrary numbers 210, 791 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.