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 817, 170, 940 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 817, 170, 940 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 817, 170, 940 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 817, 170, 940 is 1.
HCF(817, 170, 940) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 817, 170, 940 is 1.
Step 1: Since 817 > 170, we apply the division lemma to 817 and 170, to get
817 = 170 x 4 + 137
Step 2: Since the reminder 170 ≠ 0, we apply division lemma to 137 and 170, to get
170 = 137 x 1 + 33
Step 3: We consider the new divisor 137 and the new remainder 33, and apply the division lemma to get
137 = 33 x 4 + 5
We consider the new divisor 33 and the new remainder 5,and apply the division lemma to get
33 = 5 x 6 + 3
We consider the new divisor 5 and the new remainder 3,and apply the division lemma to get
5 = 3 x 1 + 2
We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get
3 = 2 x 1 + 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 817 and 170 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(33,5) = HCF(137,33) = HCF(170,137) = HCF(817,170) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 940 > 1, we apply the division lemma to 940 and 1, to get
940 = 1 x 940 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 940 is 1
Notice that 1 = HCF(940,1) .
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 817, 170, 940?
Answer: HCF of 817, 170, 940 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 817, 170, 940 using Euclid's Algorithm?
Answer: For arbitrary numbers 817, 170, 940 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.