Highest Common Factor of 978, 857, 243, 915 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 978, 857, 243, 915 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 978, 857, 243, 915 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 978, 857, 243, 915 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 978, 857, 243, 915 is 1.
HCF(978, 857, 243, 915) = 1
HCF of 978, 857, 243, 915 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 978, 857, 243, 915 is 1.
Highest Common Factor of 978,857,243,915 is 1
Step 1: Since 978 > 857, we apply the division lemma to 978 and 857, to get
978 = 857 x 1 + 121
Step 2: Since the reminder 857 ≠ 0, we apply division lemma to 121 and 857, to get
857 = 121 x 7 + 10
Step 3: We consider the new divisor 121 and the new remainder 10, and apply the division lemma to get
121 = 10 x 12 + 1
We consider the new divisor 10 and the new remainder 1, and apply the division lemma to get
10 = 1 x 10 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 978 and 857 is 1
Notice that 1 = HCF(10,1) = HCF(121,10) = HCF(857,121) = HCF(978,857) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 243 > 1, we apply the division lemma to 243 and 1, to get
243 = 1 x 243 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 243 is 1
Notice that 1 = HCF(243,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 915 > 1, we apply the division lemma to 915 and 1, to get
915 = 1 x 915 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 915 is 1
Notice that 1 = HCF(915,1) .
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Frequently Asked Questions on HCF of 978, 857, 243, 915 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 978, 857, 243, 915?
Answer: HCF of 978, 857, 243, 915 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 978, 857, 243, 915 using Euclid's Algorithm?
Answer: For arbitrary numbers 978, 857, 243, 915 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.