Highest Common Factor of 661, 393, 943 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 661, 393, 943 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 661, 393, 943 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 661, 393, 943 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 661, 393, 943 is 1.
HCF(661, 393, 943) = 1
HCF of 661, 393, 943 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 661, 393, 943 is 1.
Highest Common Factor of 661,393,943 is 1
Step 1: Since 661 > 393, we apply the division lemma to 661 and 393, to get
661 = 393 x 1 + 268
Step 2: Since the reminder 393 ≠ 0, we apply division lemma to 268 and 393, to get
393 = 268 x 1 + 125
Step 3: We consider the new divisor 268 and the new remainder 125, and apply the division lemma to get
268 = 125 x 2 + 18
We consider the new divisor 125 and the new remainder 18,and apply the division lemma to get
125 = 18 x 6 + 17
We consider the new divisor 18 and the new remainder 17,and apply the division lemma to get
18 = 17 x 1 + 1
We consider the new divisor 17 and the new remainder 1,and apply the division lemma to get
17 = 1 x 17 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 661 and 393 is 1
Notice that 1 = HCF(17,1) = HCF(18,17) = HCF(125,18) = HCF(268,125) = HCF(393,268) = HCF(661,393) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 943 > 1, we apply the division lemma to 943 and 1, to get
943 = 1 x 943 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 943 is 1
Notice that 1 = HCF(943,1) .
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Frequently Asked Questions on HCF of 661, 393, 943 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 661, 393, 943?
Answer: HCF of 661, 393, 943 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 661, 393, 943 using Euclid's Algorithm?
Answer: For arbitrary numbers 661, 393, 943 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
