Highest Common Factor of 297, 78 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 297, 78 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 297, 78 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 297, 78 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 297, 78 is 3.
HCF(297, 78) = 3
HCF of 297, 78 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 297, 78 is 3.
Highest Common Factor of 297,78 is 3
Step 1: Since 297 > 78, we apply the division lemma to 297 and 78, to get
297 = 78 x 3 + 63
Step 2: Since the reminder 78 ≠ 0, we apply division lemma to 63 and 78, to get
78 = 63 x 1 + 15
Step 3: We consider the new divisor 63 and the new remainder 15, and apply the division lemma to get
63 = 15 x 4 + 3
We consider the new divisor 15 and the new remainder 3, and apply the division lemma to get
15 = 3 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 297 and 78 is 3
Notice that 3 = HCF(15,3) = HCF(63,15) = HCF(78,63) = HCF(297,78) .
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Frequently Asked Questions on HCF of 297, 78 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 297, 78?
Answer: HCF of 297, 78 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 297, 78 using Euclid's Algorithm?
Answer: For arbitrary numbers 297, 78 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.