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 819, 310, 653 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 819, 310, 653 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 819, 310, 653 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 819, 310, 653 is 1.
HCF(819, 310, 653) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 819, 310, 653 is 1.
Step 1: Since 819 > 310, we apply the division lemma to 819 and 310, to get
819 = 310 x 2 + 199
Step 2: Since the reminder 310 ≠ 0, we apply division lemma to 199 and 310, to get
310 = 199 x 1 + 111
Step 3: We consider the new divisor 199 and the new remainder 111, and apply the division lemma to get
199 = 111 x 1 + 88
We consider the new divisor 111 and the new remainder 88,and apply the division lemma to get
111 = 88 x 1 + 23
We consider the new divisor 88 and the new remainder 23,and apply the division lemma to get
88 = 23 x 3 + 19
We consider the new divisor 23 and the new remainder 19,and apply the division lemma to get
23 = 19 x 1 + 4
We consider the new divisor 19 and the new remainder 4,and apply the division lemma to get
19 = 4 x 4 + 3
We consider the new divisor 4 and the new remainder 3,and apply the division lemma to get
4 = 3 x 1 + 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 819 and 310 is 1
Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(19,4) = HCF(23,19) = HCF(88,23) = HCF(111,88) = HCF(199,111) = HCF(310,199) = HCF(819,310) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 653 > 1, we apply the division lemma to 653 and 1, to get
653 = 1 x 653 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 653 is 1
Notice that 1 = HCF(653,1) .
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 819, 310, 653?
Answer: HCF of 819, 310, 653 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 819, 310, 653 using Euclid's Algorithm?
Answer: For arbitrary numbers 819, 310, 653 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.