Highest Common Factor of 349, 820, 126, 20 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 349, 820, 126, 20 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 349, 820, 126, 20 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 349, 820, 126, 20 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 349, 820, 126, 20 is 1.
HCF(349, 820, 126, 20) = 1
HCF of 349, 820, 126, 20 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 349, 820, 126, 20 is 1.
Highest Common Factor of 349,820,126,20 is 1
Step 1: Since 820 > 349, we apply the division lemma to 820 and 349, to get
820 = 349 x 2 + 122
Step 2: Since the reminder 349 ≠ 0, we apply division lemma to 122 and 349, to get
349 = 122 x 2 + 105
Step 3: We consider the new divisor 122 and the new remainder 105, and apply the division lemma to get
122 = 105 x 1 + 17
We consider the new divisor 105 and the new remainder 17,and apply the division lemma to get
105 = 17 x 6 + 3
We consider the new divisor 17 and the new remainder 3,and apply the division lemma to get
17 = 3 x 5 + 2
We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get
3 = 2 x 1 + 1
We consider the new divisor 2 and the new remainder 1,and apply the division lemma to get
2 = 1 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 349 and 820 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(17,3) = HCF(105,17) = HCF(122,105) = HCF(349,122) = HCF(820,349) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 126 > 1, we apply the division lemma to 126 and 1, to get
126 = 1 x 126 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 126 is 1
Notice that 1 = HCF(126,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 20 > 1, we apply the division lemma to 20 and 1, to get
20 = 1 x 20 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 20 is 1
Notice that 1 = HCF(20,1) .
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Frequently Asked Questions on HCF of 349, 820, 126, 20 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 349, 820, 126, 20?
Answer: HCF of 349, 820, 126, 20 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 349, 820, 126, 20 using Euclid's Algorithm?
Answer: For arbitrary numbers 349, 820, 126, 20 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.