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 415, 635, 13 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 415, 635, 13 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 415, 635, 13 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 415, 635, 13 is 1.
HCF(415, 635, 13) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 415, 635, 13 is 1.
Step 1: Since 635 > 415, we apply the division lemma to 635 and 415, to get
635 = 415 x 1 + 220
Step 2: Since the reminder 415 ≠ 0, we apply division lemma to 220 and 415, to get
415 = 220 x 1 + 195
Step 3: We consider the new divisor 220 and the new remainder 195, and apply the division lemma to get
220 = 195 x 1 + 25
We consider the new divisor 195 and the new remainder 25,and apply the division lemma to get
195 = 25 x 7 + 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 415 and 635 is 5
Notice that 5 = HCF(20,5) = HCF(25,20) = HCF(195,25) = HCF(220,195) = HCF(415,220) = HCF(635,415) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 13 > 5, we apply the division lemma to 13 and 5, to get
13 = 5 x 2 + 3
Step 2: Since the reminder 5 ≠ 0, we apply division lemma to 3 and 5, to get
5 = 3 x 1 + 2
Step 3: 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 5 and 13 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(13,5) .
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 415, 635, 13?
Answer: HCF of 415, 635, 13 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 415, 635, 13 using Euclid's Algorithm?
Answer: For arbitrary numbers 415, 635, 13 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.