Highest Common Factor of 978, 380, 156, 785 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, 380, 156, 785 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 978, 380, 156, 785 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, 380, 156, 785 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, 380, 156, 785 is 1.
HCF(978, 380, 156, 785) = 1
HCF of 978, 380, 156, 785 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, 380, 156, 785 is 1.
Highest Common Factor of 978,380,156,785 is 1
Step 1: Since 978 > 380, we apply the division lemma to 978 and 380, to get
978 = 380 x 2 + 218
Step 2: Since the reminder 380 ≠ 0, we apply division lemma to 218 and 380, to get
380 = 218 x 1 + 162
Step 3: We consider the new divisor 218 and the new remainder 162, and apply the division lemma to get
218 = 162 x 1 + 56
We consider the new divisor 162 and the new remainder 56,and apply the division lemma to get
162 = 56 x 2 + 50
We consider the new divisor 56 and the new remainder 50,and apply the division lemma to get
56 = 50 x 1 + 6
We consider the new divisor 50 and the new remainder 6,and apply the division lemma to get
50 = 6 x 8 + 2
We consider the new divisor 6 and the new remainder 2,and apply the division lemma to get
6 = 2 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 978 and 380 is 2
Notice that 2 = HCF(6,2) = HCF(50,6) = HCF(56,50) = HCF(162,56) = HCF(218,162) = HCF(380,218) = HCF(978,380) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 156 > 2, we apply the division lemma to 156 and 2, to get
156 = 2 x 78 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 2 and 156 is 2
Notice that 2 = HCF(156,2) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 785 > 2, we apply the division lemma to 785 and 2, to get
785 = 2 x 392 + 1
Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, to get
2 = 1 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 2 and 785 is 1
Notice that 1 = HCF(2,1) = HCF(785,2) .
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Frequently Asked Questions on HCF of 978, 380, 156, 785 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, 380, 156, 785?
Answer: HCF of 978, 380, 156, 785 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 978, 380, 156, 785 using Euclid's Algorithm?
Answer: For arbitrary numbers 978, 380, 156, 785 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.