Highest Common Factor of 781, 720, 174 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 781, 720, 174 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 781, 720, 174 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 781, 720, 174 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 781, 720, 174 is 1.
HCF(781, 720, 174) = 1
HCF of 781, 720, 174 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 781, 720, 174 is 1.
Highest Common Factor of 781,720,174 is 1
Step 1: Since 781 > 720, we apply the division lemma to 781 and 720, to get
781 = 720 x 1 + 61
Step 2: Since the reminder 720 ≠ 0, we apply division lemma to 61 and 720, to get
720 = 61 x 11 + 49
Step 3: We consider the new divisor 61 and the new remainder 49, and apply the division lemma to get
61 = 49 x 1 + 12
We consider the new divisor 49 and the new remainder 12,and apply the division lemma to get
49 = 12 x 4 + 1
We consider the new divisor 12 and the new remainder 1,and apply the division lemma to get
12 = 1 x 12 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 781 and 720 is 1
Notice that 1 = HCF(12,1) = HCF(49,12) = HCF(61,49) = HCF(720,61) = HCF(781,720) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 174 > 1, we apply the division lemma to 174 and 1, to get
174 = 1 x 174 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 174 is 1
Notice that 1 = HCF(174,1) .
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Frequently Asked Questions on HCF of 781, 720, 174 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 781, 720, 174?
Answer: HCF of 781, 720, 174 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 781, 720, 174 using Euclid's Algorithm?
Answer: For arbitrary numbers 781, 720, 174 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
