Highest Common Factor of 521, 978 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 521, 978 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 521, 978 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 521, 978 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 521, 978 is 1.
HCF(521, 978) = 1
HCF of 521, 978 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 521, 978 is 1.
Highest Common Factor of 521,978 is 1
Step 1: Since 978 > 521, we apply the division lemma to 978 and 521, to get
978 = 521 x 1 + 457
Step 2: Since the reminder 521 ≠ 0, we apply division lemma to 457 and 521, to get
521 = 457 x 1 + 64
Step 3: We consider the new divisor 457 and the new remainder 64, and apply the division lemma to get
457 = 64 x 7 + 9
We consider the new divisor 64 and the new remainder 9,and apply the division lemma to get
64 = 9 x 7 + 1
We consider the new divisor 9 and the new remainder 1,and apply the division lemma to get
9 = 1 x 9 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 521 and 978 is 1
Notice that 1 = HCF(9,1) = HCF(64,9) = HCF(457,64) = HCF(521,457) = HCF(978,521) .
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Frequently Asked Questions on HCF of 521, 978 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 521, 978?
Answer: HCF of 521, 978 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 521, 978 using Euclid's Algorithm?
Answer: For arbitrary numbers 521, 978 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.