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, 633, 257 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 819, 633, 257 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, 633, 257 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, 633, 257 is 1.
HCF(819, 633, 257) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 819, 633, 257 is 1.
Step 1: Since 819 > 633, we apply the division lemma to 819 and 633, to get
819 = 633 x 1 + 186
Step 2: Since the reminder 633 ≠ 0, we apply division lemma to 186 and 633, to get
633 = 186 x 3 + 75
Step 3: We consider the new divisor 186 and the new remainder 75, and apply the division lemma to get
186 = 75 x 2 + 36
We consider the new divisor 75 and the new remainder 36,and apply the division lemma to get
75 = 36 x 2 + 3
We consider the new divisor 36 and the new remainder 3,and apply the division lemma to get
36 = 3 x 12 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 819 and 633 is 3
Notice that 3 = HCF(36,3) = HCF(75,36) = HCF(186,75) = HCF(633,186) = HCF(819,633) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 257 > 3, we apply the division lemma to 257 and 3, to get
257 = 3 x 85 + 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 257 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(257,3) .
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 819, 633, 257?
Answer: HCF of 819, 633, 257 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 819, 633, 257 using Euclid's Algorithm?
Answer: For arbitrary numbers 819, 633, 257 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.