Highest Common Factor of 278, 178, 858, 985 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 278, 178, 858, 985 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 278, 178, 858, 985 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 278, 178, 858, 985 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 278, 178, 858, 985 is 1.
HCF(278, 178, 858, 985) = 1
HCF of 278, 178, 858, 985 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 278, 178, 858, 985 is 1.
Highest Common Factor of 278,178,858,985 is 1
Step 1: Since 278 > 178, we apply the division lemma to 278 and 178, to get
278 = 178 x 1 + 100
Step 2: Since the reminder 178 ≠ 0, we apply division lemma to 100 and 178, to get
178 = 100 x 1 + 78
Step 3: We consider the new divisor 100 and the new remainder 78, and apply the division lemma to get
100 = 78 x 1 + 22
We consider the new divisor 78 and the new remainder 22,and apply the division lemma to get
78 = 22 x 3 + 12
We consider the new divisor 22 and the new remainder 12,and apply the division lemma to get
22 = 12 x 1 + 10
We consider the new divisor 12 and the new remainder 10,and apply the division lemma to get
12 = 10 x 1 + 2
We consider the new divisor 10 and the new remainder 2,and apply the division lemma to get
10 = 2 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 278 and 178 is 2
Notice that 2 = HCF(10,2) = HCF(12,10) = HCF(22,12) = HCF(78,22) = HCF(100,78) = HCF(178,100) = HCF(278,178) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 858 > 2, we apply the division lemma to 858 and 2, to get
858 = 2 x 429 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 2 and 858 is 2
Notice that 2 = HCF(858,2) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 985 > 2, we apply the division lemma to 985 and 2, to get
985 = 2 x 492 + 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 985 is 1
Notice that 1 = HCF(2,1) = HCF(985,2) .
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Frequently Asked Questions on HCF of 278, 178, 858, 985 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 278, 178, 858, 985?
Answer: HCF of 278, 178, 858, 985 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 278, 178, 858, 985 using Euclid's Algorithm?
Answer: For arbitrary numbers 278, 178, 858, 985 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.