Highest Common Factor of 520, 620, 780 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 520, 620, 780 i.e. 20 the largest integer that leaves a remainder zero for all numbers.
HCF of 520, 620, 780 is 20 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 520, 620, 780 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 520, 620, 780 is 20.
HCF(520, 620, 780) = 20
HCF of 520, 620, 780 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 520, 620, 780 is 20.
Highest Common Factor of 520,620,780 is 20
Step 1: Since 620 > 520, we apply the division lemma to 620 and 520, to get
620 = 520 x 1 + 100
Step 2: Since the reminder 520 ≠ 0, we apply division lemma to 100 and 520, to get
520 = 100 x 5 + 20
Step 3: We consider the new divisor 100 and the new remainder 20, and apply the division lemma to get
100 = 20 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 20, the HCF of 520 and 620 is 20
Notice that 20 = HCF(100,20) = HCF(520,100) = HCF(620,520) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 780 > 20, we apply the division lemma to 780 and 20, to get
780 = 20 x 39 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 20, the HCF of 20 and 780 is 20
Notice that 20 = HCF(780,20) .
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Frequently Asked Questions on HCF of 520, 620, 780 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 520, 620, 780?
Answer: HCF of 520, 620, 780 is 20 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 520, 620, 780 using Euclid's Algorithm?
Answer: For arbitrary numbers 520, 620, 780 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
