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 943, 729, 327, 20 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 943, 729, 327, 20 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 943, 729, 327, 20 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 943, 729, 327, 20 is 1.
HCF(943, 729, 327, 20) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 943, 729, 327, 20 is 1.
Step 1: Since 943 > 729, we apply the division lemma to 943 and 729, to get
943 = 729 x 1 + 214
Step 2: Since the reminder 729 ≠ 0, we apply division lemma to 214 and 729, to get
729 = 214 x 3 + 87
Step 3: We consider the new divisor 214 and the new remainder 87, and apply the division lemma to get
214 = 87 x 2 + 40
We consider the new divisor 87 and the new remainder 40,and apply the division lemma to get
87 = 40 x 2 + 7
We consider the new divisor 40 and the new remainder 7,and apply the division lemma to get
40 = 7 x 5 + 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 943 and 729 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(7,5) = HCF(40,7) = HCF(87,40) = HCF(214,87) = HCF(729,214) = HCF(943,729) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 327 > 1, we apply the division lemma to 327 and 1, to get
327 = 1 x 327 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 327 is 1
Notice that 1 = HCF(327,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 20 > 1, we apply the division lemma to 20 and 1, to get
20 = 1 x 20 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 20 is 1
Notice that 1 = HCF(20,1) .
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 943, 729, 327, 20?
Answer: HCF of 943, 729, 327, 20 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 943, 729, 327, 20 using Euclid's Algorithm?
Answer: For arbitrary numbers 943, 729, 327, 20 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.