Highest Common Factor of 389, 673, 749 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 389, 673, 749 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 389, 673, 749 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 389, 673, 749 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 389, 673, 749 is 1.
HCF(389, 673, 749) = 1
HCF of 389, 673, 749 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 389, 673, 749 is 1.
Highest Common Factor of 389,673,749 is 1
Step 1: Since 673 > 389, we apply the division lemma to 673 and 389, to get
673 = 389 x 1 + 284
Step 2: Since the reminder 389 ≠ 0, we apply division lemma to 284 and 389, to get
389 = 284 x 1 + 105
Step 3: We consider the new divisor 284 and the new remainder 105, and apply the division lemma to get
284 = 105 x 2 + 74
We consider the new divisor 105 and the new remainder 74,and apply the division lemma to get
105 = 74 x 1 + 31
We consider the new divisor 74 and the new remainder 31,and apply the division lemma to get
74 = 31 x 2 + 12
We consider the new divisor 31 and the new remainder 12,and apply the division lemma to get
31 = 12 x 2 + 7
We consider the new divisor 12 and the new remainder 7,and apply the division lemma to get
12 = 7 x 1 + 5
We consider the new divisor 7 and the new remainder 5,and apply the division lemma to get
7 = 5 x 1 + 2
We consider the new divisor 5 and the new remainder 2,and apply the division lemma to get
5 = 2 x 2 + 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 389 and 673 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(7,5) = HCF(12,7) = HCF(31,12) = HCF(74,31) = HCF(105,74) = HCF(284,105) = HCF(389,284) = HCF(673,389) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 749 > 1, we apply the division lemma to 749 and 1, to get
749 = 1 x 749 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 749 is 1
Notice that 1 = HCF(749,1) .
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Frequently Asked Questions on HCF of 389, 673, 749 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 389, 673, 749?
Answer: HCF of 389, 673, 749 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 389, 673, 749 using Euclid's Algorithm?
Answer: For arbitrary numbers 389, 673, 749 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.