Highest Common Factor of 309, 831, 330 using Euclid's algorithm
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 309, 831, 330 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 309, 831, 330 is 3 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 309, 831, 330 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 309, 831, 330 is 3.
HCF(309, 831, 330) = 3
HCF of 309, 831, 330 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 309, 831, 330 is 3.
Highest Common Factor of 309,831,330 is 3
Step 1: Since 831 > 309, we apply the division lemma to 831 and 309, to get
831 = 309 x 2 + 213
Step 2: Since the reminder 309 ≠ 0, we apply division lemma to 213 and 309, to get
309 = 213 x 1 + 96
Step 3: We consider the new divisor 213 and the new remainder 96, and apply the division lemma to get
213 = 96 x 2 + 21
We consider the new divisor 96 and the new remainder 21,and apply the division lemma to get
96 = 21 x 4 + 12
We consider the new divisor 21 and the new remainder 12,and apply the division lemma to get
21 = 12 x 1 + 9
We consider the new divisor 12 and the new remainder 9,and apply the division lemma to get
12 = 9 x 1 + 3
We consider the new divisor 9 and the new remainder 3,and apply the division lemma to get
9 = 3 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 309 and 831 is 3
Notice that 3 = HCF(9,3) = HCF(12,9) = HCF(21,12) = HCF(96,21) = HCF(213,96) = HCF(309,213) = HCF(831,309) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 330 > 3, we apply the division lemma to 330 and 3, to get
330 = 3 x 110 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 3 and 330 is 3
Notice that 3 = HCF(330,3) .
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Frequently Asked Questions on HCF of 309, 831, 330 using Euclid's Algorithm
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 309, 831, 330?
Answer: HCF of 309, 831, 330 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 309, 831, 330 using Euclid's Algorithm?
Answer: For arbitrary numbers 309, 831, 330 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.