Highest Common Factor of 678, 549 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 678, 549 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 678, 549 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 678, 549 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 678, 549 is 3.
HCF(678, 549) = 3
HCF of 678, 549 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 678, 549 is 3.
Highest Common Factor of 678,549 is 3
Step 1: Since 678 > 549, we apply the division lemma to 678 and 549, to get
678 = 549 x 1 + 129
Step 2: Since the reminder 549 ≠ 0, we apply division lemma to 129 and 549, to get
549 = 129 x 4 + 33
Step 3: We consider the new divisor 129 and the new remainder 33, and apply the division lemma to get
129 = 33 x 3 + 30
We consider the new divisor 33 and the new remainder 30,and apply the division lemma to get
33 = 30 x 1 + 3
We consider the new divisor 30 and the new remainder 3,and apply the division lemma to get
30 = 3 x 10 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 678 and 549 is 3
Notice that 3 = HCF(30,3) = HCF(33,30) = HCF(129,33) = HCF(549,129) = HCF(678,549) .
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Frequently Asked Questions on HCF of 678, 549 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 678, 549?
Answer: HCF of 678, 549 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 678, 549 using Euclid's Algorithm?
Answer: For arbitrary numbers 678, 549 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.