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 805, 982, 22 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 805, 982, 22 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 805, 982, 22 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 805, 982, 22 is 1.
HCF(805, 982, 22) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 805, 982, 22 is 1.
Step 1: Since 982 > 805, we apply the division lemma to 982 and 805, to get
982 = 805 x 1 + 177
Step 2: Since the reminder 805 ≠ 0, we apply division lemma to 177 and 805, to get
805 = 177 x 4 + 97
Step 3: We consider the new divisor 177 and the new remainder 97, and apply the division lemma to get
177 = 97 x 1 + 80
We consider the new divisor 97 and the new remainder 80,and apply the division lemma to get
97 = 80 x 1 + 17
We consider the new divisor 80 and the new remainder 17,and apply the division lemma to get
80 = 17 x 4 + 12
We consider the new divisor 17 and the new remainder 12,and apply the division lemma to get
17 = 12 x 1 + 5
We consider the new divisor 12 and the new remainder 5,and apply the division lemma to get
12 = 5 x 2 + 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 805 and 982 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(12,5) = HCF(17,12) = HCF(80,17) = HCF(97,80) = HCF(177,97) = HCF(805,177) = HCF(982,805) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 22 > 1, we apply the division lemma to 22 and 1, to get
22 = 1 x 22 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 22 is 1
Notice that 1 = HCF(22,1) .
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 805, 982, 22?
Answer: HCF of 805, 982, 22 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 805, 982, 22 using Euclid's Algorithm?
Answer: For arbitrary numbers 805, 982, 22 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.