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 830, 321, 287 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 830, 321, 287 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 830, 321, 287 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 830, 321, 287 is 1.
HCF(830, 321, 287) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 830, 321, 287 is 1.
Step 1: Since 830 > 321, we apply the division lemma to 830 and 321, to get
830 = 321 x 2 + 188
Step 2: Since the reminder 321 ≠ 0, we apply division lemma to 188 and 321, to get
321 = 188 x 1 + 133
Step 3: We consider the new divisor 188 and the new remainder 133, and apply the division lemma to get
188 = 133 x 1 + 55
We consider the new divisor 133 and the new remainder 55,and apply the division lemma to get
133 = 55 x 2 + 23
We consider the new divisor 55 and the new remainder 23,and apply the division lemma to get
55 = 23 x 2 + 9
We consider the new divisor 23 and the new remainder 9,and apply the division lemma to get
23 = 9 x 2 + 5
We consider the new divisor 9 and the new remainder 5,and apply the division lemma to get
9 = 5 x 1 + 4
We consider the new divisor 5 and the new remainder 4,and apply the division lemma to get
5 = 4 x 1 + 1
We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get
4 = 1 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 830 and 321 is 1
Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(9,5) = HCF(23,9) = HCF(55,23) = HCF(133,55) = HCF(188,133) = HCF(321,188) = HCF(830,321) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 287 > 1, we apply the division lemma to 287 and 1, to get
287 = 1 x 287 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 287 is 1
Notice that 1 = HCF(287,1) .
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 830, 321, 287?
Answer: HCF of 830, 321, 287 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 830, 321, 287 using Euclid's Algorithm?
Answer: For arbitrary numbers 830, 321, 287 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.