Highest Common Factor of 689, 394, 947 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, 394, 947 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 689, 394, 947 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, 394, 947 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, 394, 947 is 1.
HCF(689, 394, 947) = 1
HCF of 689, 394, 947 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, 394, 947 is 1.
Highest Common Factor of 689,394,947 is 1
Step 1: Since 689 > 394, we apply the division lemma to 689 and 394, to get
689 = 394 x 1 + 295
Step 2: Since the reminder 394 ≠ 0, we apply division lemma to 295 and 394, to get
394 = 295 x 1 + 99
Step 3: We consider the new divisor 295 and the new remainder 99, and apply the division lemma to get
295 = 99 x 2 + 97
We consider the new divisor 99 and the new remainder 97,and apply the division lemma to get
99 = 97 x 1 + 2
We consider the new divisor 97 and the new remainder 2,and apply the division lemma to get
97 = 2 x 48 + 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 394 is 1
Notice that 1 = HCF(2,1) = HCF(97,2) = HCF(99,97) = HCF(295,99) = HCF(394,295) = HCF(689,394) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 947 > 1, we apply the division lemma to 947 and 1, to get
947 = 1 x 947 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 947 is 1
Notice that 1 = HCF(947,1) .
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Frequently Asked Questions on HCF of 689, 394, 947 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, 394, 947?
Answer: HCF of 689, 394, 947 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 689, 394, 947 using Euclid's Algorithm?
Answer: For arbitrary numbers 689, 394, 947 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.