Highest Common Factor of 686, 199, 124 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 686, 199, 124 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 686, 199, 124 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 686, 199, 124 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 686, 199, 124 is 1.
HCF(686, 199, 124) = 1
HCF of 686, 199, 124 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 686, 199, 124 is 1.
Highest Common Factor of 686,199,124 is 1
Step 1: Since 686 > 199, we apply the division lemma to 686 and 199, to get
686 = 199 x 3 + 89
Step 2: Since the reminder 199 ≠ 0, we apply division lemma to 89 and 199, to get
199 = 89 x 2 + 21
Step 3: We consider the new divisor 89 and the new remainder 21, and apply the division lemma to get
89 = 21 x 4 + 5
We consider the new divisor 21 and the new remainder 5,and apply the division lemma to get
21 = 5 x 4 + 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 686 and 199 is 1
Notice that 1 = HCF(5,1) = HCF(21,5) = HCF(89,21) = HCF(199,89) = HCF(686,199) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 124 > 1, we apply the division lemma to 124 and 1, to get
124 = 1 x 124 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 124 is 1
Notice that 1 = HCF(124,1) .
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Frequently Asked Questions on HCF of 686, 199, 124 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 686, 199, 124?
Answer: HCF of 686, 199, 124 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 686, 199, 124 using Euclid's Algorithm?
Answer: For arbitrary numbers 686, 199, 124 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.