Highest Common Factor of 870, 7978 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 870, 7978 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 870, 7978 is 2 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 870, 7978 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 870, 7978 is 2.
HCF(870, 7978) = 2
HCF of 870, 7978 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 870, 7978 is 2.
Highest Common Factor of 870,7978 is 2
Step 1: Since 7978 > 870, we apply the division lemma to 7978 and 870, to get
7978 = 870 x 9 + 148
Step 2: Since the reminder 870 ≠ 0, we apply division lemma to 148 and 870, to get
870 = 148 x 5 + 130
Step 3: We consider the new divisor 148 and the new remainder 130, and apply the division lemma to get
148 = 130 x 1 + 18
We consider the new divisor 130 and the new remainder 18,and apply the division lemma to get
130 = 18 x 7 + 4
We consider the new divisor 18 and the new remainder 4,and apply the division lemma to get
18 = 4 x 4 + 2
We consider the new divisor 4 and the new remainder 2,and apply the division lemma to get
4 = 2 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 870 and 7978 is 2
Notice that 2 = HCF(4,2) = HCF(18,4) = HCF(130,18) = HCF(148,130) = HCF(870,148) = HCF(7978,870) .
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Frequently Asked Questions on HCF of 870, 7978 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 870, 7978?
Answer: HCF of 870, 7978 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 870, 7978 using Euclid's Algorithm?
Answer: For arbitrary numbers 870, 7978 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.