Highest Common Factor of 665, 780, 666, 559 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 665, 780, 666, 559 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 665, 780, 666, 559 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 665, 780, 666, 559 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 665, 780, 666, 559 is 1.
HCF(665, 780, 666, 559) = 1
HCF of 665, 780, 666, 559 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 665, 780, 666, 559 is 1.
Highest Common Factor of 665,780,666,559 is 1
Step 1: Since 780 > 665, we apply the division lemma to 780 and 665, to get
780 = 665 x 1 + 115
Step 2: Since the reminder 665 ≠ 0, we apply division lemma to 115 and 665, to get
665 = 115 x 5 + 90
Step 3: We consider the new divisor 115 and the new remainder 90, and apply the division lemma to get
115 = 90 x 1 + 25
We consider the new divisor 90 and the new remainder 25,and apply the division lemma to get
90 = 25 x 3 + 15
We consider the new divisor 25 and the new remainder 15,and apply the division lemma to get
25 = 15 x 1 + 10
We consider the new divisor 15 and the new remainder 10,and apply the division lemma to get
15 = 10 x 1 + 5
We consider the new divisor 10 and the new remainder 5,and apply the division lemma to get
10 = 5 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 665 and 780 is 5
Notice that 5 = HCF(10,5) = HCF(15,10) = HCF(25,15) = HCF(90,25) = HCF(115,90) = HCF(665,115) = HCF(780,665) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 666 > 5, we apply the division lemma to 666 and 5, to get
666 = 5 x 133 + 1
Step 2: Since the reminder 5 ≠ 0, we apply division lemma to 1 and 5, to get
5 = 1 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 5 and 666 is 1
Notice that 1 = HCF(5,1) = HCF(666,5) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 559 > 1, we apply the division lemma to 559 and 1, to get
559 = 1 x 559 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 559 is 1
Notice that 1 = HCF(559,1) .
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Frequently Asked Questions on HCF of 665, 780, 666, 559 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 665, 780, 666, 559?
Answer: HCF of 665, 780, 666, 559 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 665, 780, 666, 559 using Euclid's Algorithm?
Answer: For arbitrary numbers 665, 780, 666, 559 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.