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 711, 990, 417 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 711, 990, 417 is 3 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 711, 990, 417 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 711, 990, 417 is 3.
HCF(711, 990, 417) = 3
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 711, 990, 417 is 3.
Step 1: Since 990 > 711, we apply the division lemma to 990 and 711, to get
990 = 711 x 1 + 279
Step 2: Since the reminder 711 ≠ 0, we apply division lemma to 279 and 711, to get
711 = 279 x 2 + 153
Step 3: We consider the new divisor 279 and the new remainder 153, and apply the division lemma to get
279 = 153 x 1 + 126
We consider the new divisor 153 and the new remainder 126,and apply the division lemma to get
153 = 126 x 1 + 27
We consider the new divisor 126 and the new remainder 27,and apply the division lemma to get
126 = 27 x 4 + 18
We consider the new divisor 27 and the new remainder 18,and apply the division lemma to get
27 = 18 x 1 + 9
We consider the new divisor 18 and the new remainder 9,and apply the division lemma to get
18 = 9 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 9, the HCF of 711 and 990 is 9
Notice that 9 = HCF(18,9) = HCF(27,18) = HCF(126,27) = HCF(153,126) = HCF(279,153) = HCF(711,279) = HCF(990,711) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 417 > 9, we apply the division lemma to 417 and 9, to get
417 = 9 x 46 + 3
Step 2: Since the reminder 9 ≠ 0, we apply division lemma to 3 and 9, to get
9 = 3 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 9 and 417 is 3
Notice that 3 = HCF(9,3) = HCF(417,9) .
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 711, 990, 417?
Answer: HCF of 711, 990, 417 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 711, 990, 417 using Euclid's Algorithm?
Answer: For arbitrary numbers 711, 990, 417 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.