Highest Common Factor of 215, 920, 728, 904 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 215, 920, 728, 904 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 215, 920, 728, 904 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 215, 920, 728, 904 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 215, 920, 728, 904 is 1.
HCF(215, 920, 728, 904) = 1
HCF of 215, 920, 728, 904 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 215, 920, 728, 904 is 1.
Highest Common Factor of 215,920,728,904 is 1
Step 1: Since 920 > 215, we apply the division lemma to 920 and 215, to get
920 = 215 x 4 + 60
Step 2: Since the reminder 215 ≠ 0, we apply division lemma to 60 and 215, to get
215 = 60 x 3 + 35
Step 3: We consider the new divisor 60 and the new remainder 35, and apply the division lemma to get
60 = 35 x 1 + 25
We consider the new divisor 35 and the new remainder 25,and apply the division lemma to get
35 = 25 x 1 + 10
We consider the new divisor 25 and the new remainder 10,and apply the division lemma to get
25 = 10 x 2 + 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 215 and 920 is 5
Notice that 5 = HCF(10,5) = HCF(25,10) = HCF(35,25) = HCF(60,35) = HCF(215,60) = HCF(920,215) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 728 > 5, we apply the division lemma to 728 and 5, to get
728 = 5 x 145 + 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 728 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(728,5) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 904 > 1, we apply the division lemma to 904 and 1, to get
904 = 1 x 904 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 904 is 1
Notice that 1 = HCF(904,1) .
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Frequently Asked Questions on HCF of 215, 920, 728, 904 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 215, 920, 728, 904?
Answer: HCF of 215, 920, 728, 904 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 215, 920, 728, 904 using Euclid's Algorithm?
Answer: For arbitrary numbers 215, 920, 728, 904 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.