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 808, 321, 99 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 808, 321, 99 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 808, 321, 99 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 808, 321, 99 is 1.
HCF(808, 321, 99) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 808, 321, 99 is 1.
Step 1: Since 808 > 321, we apply the division lemma to 808 and 321, to get
808 = 321 x 2 + 166
Step 2: Since the reminder 321 ≠ 0, we apply division lemma to 166 and 321, to get
321 = 166 x 1 + 155
Step 3: We consider the new divisor 166 and the new remainder 155, and apply the division lemma to get
166 = 155 x 1 + 11
We consider the new divisor 155 and the new remainder 11,and apply the division lemma to get
155 = 11 x 14 + 1
We consider the new divisor 11 and the new remainder 1,and apply the division lemma to get
11 = 1 x 11 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 808 and 321 is 1
Notice that 1 = HCF(11,1) = HCF(155,11) = HCF(166,155) = HCF(321,166) = HCF(808,321) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 99 > 1, we apply the division lemma to 99 and 1, to get
99 = 1 x 99 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 99 is 1
Notice that 1 = HCF(99,1) .
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 808, 321, 99?
Answer: HCF of 808, 321, 99 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 808, 321, 99 using Euclid's Algorithm?
Answer: For arbitrary numbers 808, 321, 99 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.