Highest Common Factor of 685, 845, 35, 655 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 685, 845, 35, 655 i.e. 5 the largest integer that leaves a remainder zero for all numbers.
HCF of 685, 845, 35, 655 is 5 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 685, 845, 35, 655 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 685, 845, 35, 655 is 5.
HCF(685, 845, 35, 655) = 5
HCF of 685, 845, 35, 655 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 685, 845, 35, 655 is 5.
Highest Common Factor of 685,845,35,655 is 5
Step 1: Since 845 > 685, we apply the division lemma to 845 and 685, to get
845 = 685 x 1 + 160
Step 2: Since the reminder 685 ≠ 0, we apply division lemma to 160 and 685, to get
685 = 160 x 4 + 45
Step 3: We consider the new divisor 160 and the new remainder 45, and apply the division lemma to get
160 = 45 x 3 + 25
We consider the new divisor 45 and the new remainder 25,and apply the division lemma to get
45 = 25 x 1 + 20
We consider the new divisor 25 and the new remainder 20,and apply the division lemma to get
25 = 20 x 1 + 5
We consider the new divisor 20 and the new remainder 5,and apply the division lemma to get
20 = 5 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 685 and 845 is 5
Notice that 5 = HCF(20,5) = HCF(25,20) = HCF(45,25) = HCF(160,45) = HCF(685,160) = HCF(845,685) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 35 > 5, we apply the division lemma to 35 and 5, to get
35 = 5 x 7 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 5 and 35 is 5
Notice that 5 = HCF(35,5) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 655 > 5, we apply the division lemma to 655 and 5, to get
655 = 5 x 131 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 5 and 655 is 5
Notice that 5 = HCF(655,5) .
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Frequently Asked Questions on HCF of 685, 845, 35, 655 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 685, 845, 35, 655?
Answer: HCF of 685, 845, 35, 655 is 5 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 685, 845, 35, 655 using Euclid's Algorithm?
Answer: For arbitrary numbers 685, 845, 35, 655 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.