Highest Common Factor of 945, 687, 191 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 945, 687, 191 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 945, 687, 191 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 945, 687, 191 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 945, 687, 191 is 1.
HCF(945, 687, 191) = 1
HCF of 945, 687, 191 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 945, 687, 191 is 1.
Highest Common Factor of 945,687,191 is 1
Step 1: Since 945 > 687, we apply the division lemma to 945 and 687, to get
945 = 687 x 1 + 258
Step 2: Since the reminder 687 ≠ 0, we apply division lemma to 258 and 687, to get
687 = 258 x 2 + 171
Step 3: We consider the new divisor 258 and the new remainder 171, and apply the division lemma to get
258 = 171 x 1 + 87
We consider the new divisor 171 and the new remainder 87,and apply the division lemma to get
171 = 87 x 1 + 84
We consider the new divisor 87 and the new remainder 84,and apply the division lemma to get
87 = 84 x 1 + 3
We consider the new divisor 84 and the new remainder 3,and apply the division lemma to get
84 = 3 x 28 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 945 and 687 is 3
Notice that 3 = HCF(84,3) = HCF(87,84) = HCF(171,87) = HCF(258,171) = HCF(687,258) = HCF(945,687) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 191 > 3, we apply the division lemma to 191 and 3, to get
191 = 3 x 63 + 2
Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 2 and 3, to get
3 = 2 x 1 + 1
Step 3: 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 3 and 191 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(191,3) .
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Frequently Asked Questions on HCF of 945, 687, 191 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 945, 687, 191?
Answer: HCF of 945, 687, 191 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 945, 687, 191 using Euclid's Algorithm?
Answer: For arbitrary numbers 945, 687, 191 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.