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 715, 195, 823 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 715, 195, 823 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 715, 195, 823 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 715, 195, 823 is 1.
HCF(715, 195, 823) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 715, 195, 823 is 1.
Step 1: Since 715 > 195, we apply the division lemma to 715 and 195, to get
715 = 195 x 3 + 130
Step 2: Since the reminder 195 ≠ 0, we apply division lemma to 130 and 195, to get
195 = 130 x 1 + 65
Step 3: We consider the new divisor 130 and the new remainder 65, and apply the division lemma to get
130 = 65 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 65, the HCF of 715 and 195 is 65
Notice that 65 = HCF(130,65) = HCF(195,130) = HCF(715,195) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 823 > 65, we apply the division lemma to 823 and 65, to get
823 = 65 x 12 + 43
Step 2: Since the reminder 65 ≠ 0, we apply division lemma to 43 and 65, to get
65 = 43 x 1 + 22
Step 3: We consider the new divisor 43 and the new remainder 22, and apply the division lemma to get
43 = 22 x 1 + 21
We consider the new divisor 22 and the new remainder 21,and apply the division lemma to get
22 = 21 x 1 + 1
We consider the new divisor 21 and the new remainder 1,and apply the division lemma to get
21 = 1 x 21 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 65 and 823 is 1
Notice that 1 = HCF(21,1) = HCF(22,21) = HCF(43,22) = HCF(65,43) = HCF(823,65) .
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 715, 195, 823?
Answer: HCF of 715, 195, 823 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 715, 195, 823 using Euclid's Algorithm?
Answer: For arbitrary numbers 715, 195, 823 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.