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 561, 776, 473 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 561, 776, 473 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 561, 776, 473 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 561, 776, 473 is 1.
HCF(561, 776, 473) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 561, 776, 473 is 1.
Step 1: Since 776 > 561, we apply the division lemma to 776 and 561, to get
776 = 561 x 1 + 215
Step 2: Since the reminder 561 ≠ 0, we apply division lemma to 215 and 561, to get
561 = 215 x 2 + 131
Step 3: We consider the new divisor 215 and the new remainder 131, and apply the division lemma to get
215 = 131 x 1 + 84
We consider the new divisor 131 and the new remainder 84,and apply the division lemma to get
131 = 84 x 1 + 47
We consider the new divisor 84 and the new remainder 47,and apply the division lemma to get
84 = 47 x 1 + 37
We consider the new divisor 47 and the new remainder 37,and apply the division lemma to get
47 = 37 x 1 + 10
We consider the new divisor 37 and the new remainder 10,and apply the division lemma to get
37 = 10 x 3 + 7
We consider the new divisor 10 and the new remainder 7,and apply the division lemma to get
10 = 7 x 1 + 3
We consider the new divisor 7 and the new remainder 3,and apply the division lemma to get
7 = 3 x 2 + 1
We consider the new divisor 3 and the new remainder 1,and apply the division lemma to get
3 = 1 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 561 and 776 is 1
Notice that 1 = HCF(3,1) = HCF(7,3) = HCF(10,7) = HCF(37,10) = HCF(47,37) = HCF(84,47) = HCF(131,84) = HCF(215,131) = HCF(561,215) = HCF(776,561) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 473 > 1, we apply the division lemma to 473 and 1, to get
473 = 1 x 473 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 473 is 1
Notice that 1 = HCF(473,1) .
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 561, 776, 473?
Answer: HCF of 561, 776, 473 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 561, 776, 473 using Euclid's Algorithm?
Answer: For arbitrary numbers 561, 776, 473 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.