Highest Common Factor of 491, 90989 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 491, 90989 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 491, 90989 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 491, 90989 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 491, 90989 is 1.
HCF(491, 90989) = 1
HCF of 491, 90989 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 491, 90989 is 1.
Highest Common Factor of 491,90989 is 1
Step 1: Since 90989 > 491, we apply the division lemma to 90989 and 491, to get
90989 = 491 x 185 + 154
Step 2: Since the reminder 491 ≠ 0, we apply division lemma to 154 and 491, to get
491 = 154 x 3 + 29
Step 3: We consider the new divisor 154 and the new remainder 29, and apply the division lemma to get
154 = 29 x 5 + 9
We consider the new divisor 29 and the new remainder 9,and apply the division lemma to get
29 = 9 x 3 + 2
We consider the new divisor 9 and the new remainder 2,and apply the division lemma to get
9 = 2 x 4 + 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 491 and 90989 is 1
Notice that 1 = HCF(2,1) = HCF(9,2) = HCF(29,9) = HCF(154,29) = HCF(491,154) = HCF(90989,491) .
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Frequently Asked Questions on HCF of 491, 90989 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 491, 90989?
Answer: HCF of 491, 90989 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 491, 90989 using Euclid's Algorithm?
Answer: For arbitrary numbers 491, 90989 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.