Highest Common Factor of 780, 980 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 780, 980 i.e. 20 the largest integer that leaves a remainder zero for all numbers.
HCF of 780, 980 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 780, 980 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 780, 980 is 20.
HCF(780, 980) = 20
HCF of 780, 980 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 780, 980 is 20.
Highest Common Factor of 780,980 is 20
Step 1: Since 980 > 780, we apply the division lemma to 980 and 780, to get
980 = 780 x 1 + 200
Step 2: Since the reminder 780 ≠ 0, we apply division lemma to 200 and 780, to get
780 = 200 x 3 + 180
Step 3: We consider the new divisor 200 and the new remainder 180, and apply the division lemma to get
200 = 180 x 1 + 20
We consider the new divisor 180 and the new remainder 20, and apply the division lemma to get
180 = 20 x 9 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 20, the HCF of 780 and 980 is 20
Notice that 20 = HCF(180,20) = HCF(200,180) = HCF(780,200) = HCF(980,780) .
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Frequently Asked Questions on HCF of 780, 980 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 780, 980?
Answer: HCF of 780, 980 is 20 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 780, 980 using Euclid's Algorithm?
Answer: For arbitrary numbers 780, 980 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.