Highest Common Factor of 689, 361 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 689, 361 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 689, 361 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 689, 361 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 689, 361 is 1.
HCF(689, 361) = 1
HCF of 689, 361 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 689, 361 is 1.
Highest Common Factor of 689,361 is 1
Step 1: Since 689 > 361, we apply the division lemma to 689 and 361, to get
689 = 361 x 1 + 328
Step 2: Since the reminder 361 ≠ 0, we apply division lemma to 328 and 361, to get
361 = 328 x 1 + 33
Step 3: We consider the new divisor 328 and the new remainder 33, and apply the division lemma to get
328 = 33 x 9 + 31
We consider the new divisor 33 and the new remainder 31,and apply the division lemma to get
33 = 31 x 1 + 2
We consider the new divisor 31 and the new remainder 2,and apply the division lemma to get
31 = 2 x 15 + 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 689 and 361 is 1
Notice that 1 = HCF(2,1) = HCF(31,2) = HCF(33,31) = HCF(328,33) = HCF(361,328) = HCF(689,361) .
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Frequently Asked Questions on HCF of 689, 361 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 689, 361?
Answer: HCF of 689, 361 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 689, 361 using Euclid's Algorithm?
Answer: For arbitrary numbers 689, 361 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.