Highest Common Factor of 989, 647 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 989, 647 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 989, 647 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 989, 647 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 989, 647 is 1.
HCF(989, 647) = 1
HCF of 989, 647 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 989, 647 is 1.
Highest Common Factor of 989,647 is 1
Step 1: Since 989 > 647, we apply the division lemma to 989 and 647, to get
989 = 647 x 1 + 342
Step 2: Since the reminder 647 ≠ 0, we apply division lemma to 342 and 647, to get
647 = 342 x 1 + 305
Step 3: We consider the new divisor 342 and the new remainder 305, and apply the division lemma to get
342 = 305 x 1 + 37
We consider the new divisor 305 and the new remainder 37,and apply the division lemma to get
305 = 37 x 8 + 9
We consider the new divisor 37 and the new remainder 9,and apply the division lemma to get
37 = 9 x 4 + 1
We consider the new divisor 9 and the new remainder 1,and apply the division lemma to get
9 = 1 x 9 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 989 and 647 is 1
Notice that 1 = HCF(9,1) = HCF(37,9) = HCF(305,37) = HCF(342,305) = HCF(647,342) = HCF(989,647) .
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Frequently Asked Questions on HCF of 989, 647 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 989, 647?
Answer: HCF of 989, 647 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 989, 647 using Euclid's Algorithm?
Answer: For arbitrary numbers 989, 647 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.