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 891, 571, 122 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 891, 571, 122 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 891, 571, 122 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 891, 571, 122 is 1.
HCF(891, 571, 122) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 891, 571, 122 is 1.
Step 1: Since 891 > 571, we apply the division lemma to 891 and 571, to get
891 = 571 x 1 + 320
Step 2: Since the reminder 571 ≠ 0, we apply division lemma to 320 and 571, to get
571 = 320 x 1 + 251
Step 3: We consider the new divisor 320 and the new remainder 251, and apply the division lemma to get
320 = 251 x 1 + 69
We consider the new divisor 251 and the new remainder 69,and apply the division lemma to get
251 = 69 x 3 + 44
We consider the new divisor 69 and the new remainder 44,and apply the division lemma to get
69 = 44 x 1 + 25
We consider the new divisor 44 and the new remainder 25,and apply the division lemma to get
44 = 25 x 1 + 19
We consider the new divisor 25 and the new remainder 19,and apply the division lemma to get
25 = 19 x 1 + 6
We consider the new divisor 19 and the new remainder 6,and apply the division lemma to get
19 = 6 x 3 + 1
We consider the new divisor 6 and the new remainder 1,and apply the division lemma to get
6 = 1 x 6 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 891 and 571 is 1
Notice that 1 = HCF(6,1) = HCF(19,6) = HCF(25,19) = HCF(44,25) = HCF(69,44) = HCF(251,69) = HCF(320,251) = HCF(571,320) = HCF(891,571) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 122 > 1, we apply the division lemma to 122 and 1, to get
122 = 1 x 122 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 122 is 1
Notice that 1 = HCF(122,1) .
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 891, 571, 122?
Answer: HCF of 891, 571, 122 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 891, 571, 122 using Euclid's Algorithm?
Answer: For arbitrary numbers 891, 571, 122 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.