Highest Common Factor of 491, 789, 368 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, 789, 368 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 491, 789, 368 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, 789, 368 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, 789, 368 is 1.
HCF(491, 789, 368) = 1
HCF of 491, 789, 368 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, 789, 368 is 1.
Highest Common Factor of 491,789,368 is 1
Step 1: Since 789 > 491, we apply the division lemma to 789 and 491, to get
789 = 491 x 1 + 298
Step 2: Since the reminder 491 ≠ 0, we apply division lemma to 298 and 491, to get
491 = 298 x 1 + 193
Step 3: We consider the new divisor 298 and the new remainder 193, and apply the division lemma to get
298 = 193 x 1 + 105
We consider the new divisor 193 and the new remainder 105,and apply the division lemma to get
193 = 105 x 1 + 88
We consider the new divisor 105 and the new remainder 88,and apply the division lemma to get
105 = 88 x 1 + 17
We consider the new divisor 88 and the new remainder 17,and apply the division lemma to get
88 = 17 x 5 + 3
We consider the new divisor 17 and the new remainder 3,and apply the division lemma to get
17 = 3 x 5 + 2
We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get
3 = 2 x 1 + 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 789 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(17,3) = HCF(88,17) = HCF(105,88) = HCF(193,105) = HCF(298,193) = HCF(491,298) = HCF(789,491) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 368 > 1, we apply the division lemma to 368 and 1, to get
368 = 1 x 368 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 368 is 1
Notice that 1 = HCF(368,1) .
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Frequently Asked Questions on HCF of 491, 789, 368 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, 789, 368?
Answer: HCF of 491, 789, 368 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 491, 789, 368 using Euclid's Algorithm?
Answer: For arbitrary numbers 491, 789, 368 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.