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 645, 873, 833 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 645, 873, 833 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 645, 873, 833 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 645, 873, 833 is 1.
HCF(645, 873, 833) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 645, 873, 833 is 1.
Step 1: Since 873 > 645, we apply the division lemma to 873 and 645, to get
873 = 645 x 1 + 228
Step 2: Since the reminder 645 ≠ 0, we apply division lemma to 228 and 645, to get
645 = 228 x 2 + 189
Step 3: We consider the new divisor 228 and the new remainder 189, and apply the division lemma to get
228 = 189 x 1 + 39
We consider the new divisor 189 and the new remainder 39,and apply the division lemma to get
189 = 39 x 4 + 33
We consider the new divisor 39 and the new remainder 33,and apply the division lemma to get
39 = 33 x 1 + 6
We consider the new divisor 33 and the new remainder 6,and apply the division lemma to get
33 = 6 x 5 + 3
We consider the new divisor 6 and the new remainder 3,and apply the division lemma to get
6 = 3 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 645 and 873 is 3
Notice that 3 = HCF(6,3) = HCF(33,6) = HCF(39,33) = HCF(189,39) = HCF(228,189) = HCF(645,228) = HCF(873,645) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 833 > 3, we apply the division lemma to 833 and 3, to get
833 = 3 x 277 + 2
Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 2 and 3, to get
3 = 2 x 1 + 1
Step 3: 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 3 and 833 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(833,3) .
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 645, 873, 833?
Answer: HCF of 645, 873, 833 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 645, 873, 833 using Euclid's Algorithm?
Answer: For arbitrary numbers 645, 873, 833 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.