Highest Common Factor of 864, 505, 205 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 864, 505, 205 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 864, 505, 205 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 864, 505, 205 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 864, 505, 205 is 1.
HCF(864, 505, 205) = 1
HCF of 864, 505, 205 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 864, 505, 205 is 1.
Highest Common Factor of 864,505,205 is 1
Step 1: Since 864 > 505, we apply the division lemma to 864 and 505, to get
864 = 505 x 1 + 359
Step 2: Since the reminder 505 ≠ 0, we apply division lemma to 359 and 505, to get
505 = 359 x 1 + 146
Step 3: We consider the new divisor 359 and the new remainder 146, and apply the division lemma to get
359 = 146 x 2 + 67
We consider the new divisor 146 and the new remainder 67,and apply the division lemma to get
146 = 67 x 2 + 12
We consider the new divisor 67 and the new remainder 12,and apply the division lemma to get
67 = 12 x 5 + 7
We consider the new divisor 12 and the new remainder 7,and apply the division lemma to get
12 = 7 x 1 + 5
We consider the new divisor 7 and the new remainder 5,and apply the division lemma to get
7 = 5 x 1 + 2
We consider the new divisor 5 and the new remainder 2,and apply the division lemma to get
5 = 2 x 2 + 1
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 864 and 505 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(7,5) = HCF(12,7) = HCF(67,12) = HCF(146,67) = HCF(359,146) = HCF(505,359) = HCF(864,505) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 205 > 1, we apply the division lemma to 205 and 1, to get
205 = 1 x 205 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 205 is 1
Notice that 1 = HCF(205,1) .
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Frequently Asked Questions on HCF of 864, 505, 205 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 864, 505, 205?
Answer: HCF of 864, 505, 205 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 864, 505, 205 using Euclid's Algorithm?
Answer: For arbitrary numbers 864, 505, 205 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.