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 368, 639, 231 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 368, 639, 231 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 368, 639, 231 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 368, 639, 231 is 1.
HCF(368, 639, 231) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 368, 639, 231 is 1.
Step 1: Since 639 > 368, we apply the division lemma to 639 and 368, to get
639 = 368 x 1 + 271
Step 2: Since the reminder 368 ≠ 0, we apply division lemma to 271 and 368, to get
368 = 271 x 1 + 97
Step 3: We consider the new divisor 271 and the new remainder 97, and apply the division lemma to get
271 = 97 x 2 + 77
We consider the new divisor 97 and the new remainder 77,and apply the division lemma to get
97 = 77 x 1 + 20
We consider the new divisor 77 and the new remainder 20,and apply the division lemma to get
77 = 20 x 3 + 17
We consider the new divisor 20 and the new remainder 17,and apply the division lemma to get
20 = 17 x 1 + 3
We consider the new divisor 17 and the new remainder 3,and apply the division lemma to get
17 = 3 x 5 + 2
We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get
3 = 2 x 1 + 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 368 and 639 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(17,3) = HCF(20,17) = HCF(77,20) = HCF(97,77) = HCF(271,97) = HCF(368,271) = HCF(639,368) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 231 > 1, we apply the division lemma to 231 and 1, to get
231 = 1 x 231 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 231 is 1
Notice that 1 = HCF(231,1) .
Here are some samples of HCF using Euclid's Algorithm calculations.
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 368, 639, 231?
Answer: HCF of 368, 639, 231 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 368, 639, 231 using Euclid's Algorithm?
Answer: For arbitrary numbers 368, 639, 231 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.