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 293, 798, 720 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 293, 798, 720 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 293, 798, 720 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 293, 798, 720 is 1.
HCF(293, 798, 720) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 293, 798, 720 is 1.
Step 1: Since 798 > 293, we apply the division lemma to 798 and 293, to get
798 = 293 x 2 + 212
Step 2: Since the reminder 293 ≠ 0, we apply division lemma to 212 and 293, to get
293 = 212 x 1 + 81
Step 3: We consider the new divisor 212 and the new remainder 81, and apply the division lemma to get
212 = 81 x 2 + 50
We consider the new divisor 81 and the new remainder 50,and apply the division lemma to get
81 = 50 x 1 + 31
We consider the new divisor 50 and the new remainder 31,and apply the division lemma to get
50 = 31 x 1 + 19
We consider the new divisor 31 and the new remainder 19,and apply the division lemma to get
31 = 19 x 1 + 12
We consider the new divisor 19 and the new remainder 12,and apply the division lemma to get
19 = 12 x 1 + 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 293 and 798 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(7,5) = HCF(12,7) = HCF(19,12) = HCF(31,19) = HCF(50,31) = HCF(81,50) = HCF(212,81) = HCF(293,212) = HCF(798,293) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 720 > 1, we apply the division lemma to 720 and 1, to get
720 = 1 x 720 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 720 is 1
Notice that 1 = HCF(720,1) .
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 293, 798, 720?
Answer: HCF of 293, 798, 720 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 293, 798, 720 using Euclid's Algorithm?
Answer: For arbitrary numbers 293, 798, 720 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.