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 869, 670, 529, 243 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 869, 670, 529, 243 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 869, 670, 529, 243 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 869, 670, 529, 243 is 1.
HCF(869, 670, 529, 243) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 869, 670, 529, 243 is 1.
Step 1: Since 869 > 670, we apply the division lemma to 869 and 670, to get
869 = 670 x 1 + 199
Step 2: Since the reminder 670 ≠ 0, we apply division lemma to 199 and 670, to get
670 = 199 x 3 + 73
Step 3: We consider the new divisor 199 and the new remainder 73, and apply the division lemma to get
199 = 73 x 2 + 53
We consider the new divisor 73 and the new remainder 53,and apply the division lemma to get
73 = 53 x 1 + 20
We consider the new divisor 53 and the new remainder 20,and apply the division lemma to get
53 = 20 x 2 + 13
We consider the new divisor 20 and the new remainder 13,and apply the division lemma to get
20 = 13 x 1 + 7
We consider the new divisor 13 and the new remainder 7,and apply the division lemma to get
13 = 7 x 1 + 6
We consider the new divisor 7 and the new remainder 6,and apply the division lemma to get
7 = 6 x 1 + 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 869 and 670 is 1
Notice that 1 = HCF(6,1) = HCF(7,6) = HCF(13,7) = HCF(20,13) = HCF(53,20) = HCF(73,53) = HCF(199,73) = HCF(670,199) = HCF(869,670) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 529 > 1, we apply the division lemma to 529 and 1, to get
529 = 1 x 529 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 529 is 1
Notice that 1 = HCF(529,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 243 > 1, we apply the division lemma to 243 and 1, to get
243 = 1 x 243 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 243 is 1
Notice that 1 = HCF(243,1) .
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 869, 670, 529, 243?
Answer: HCF of 869, 670, 529, 243 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 869, 670, 529, 243 using Euclid's Algorithm?
Answer: For arbitrary numbers 869, 670, 529, 243 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.