Highest Common Factor of 98, 68, 87, 644 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 98, 68, 87, 644 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 98, 68, 87, 644 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 98, 68, 87, 644 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 98, 68, 87, 644 is 1.
HCF(98, 68, 87, 644) = 1
HCF of 98, 68, 87, 644 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 98, 68, 87, 644 is 1.
Highest Common Factor of 98,68,87,644 is 1
Step 1: Since 98 > 68, we apply the division lemma to 98 and 68, to get
98 = 68 x 1 + 30
Step 2: Since the reminder 68 ≠ 0, we apply division lemma to 30 and 68, to get
68 = 30 x 2 + 8
Step 3: We consider the new divisor 30 and the new remainder 8, and apply the division lemma to get
30 = 8 x 3 + 6
We consider the new divisor 8 and the new remainder 6,and apply the division lemma to get
8 = 6 x 1 + 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 98 and 68 is 2
Notice that 2 = HCF(6,2) = HCF(8,6) = HCF(30,8) = HCF(68,30) = HCF(98,68) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 87 > 2, we apply the division lemma to 87 and 2, to get
87 = 2 x 43 + 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 87 is 1
Notice that 1 = HCF(2,1) = HCF(87,2) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 644 > 1, we apply the division lemma to 644 and 1, to get
644 = 1 x 644 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 644 is 1
Notice that 1 = HCF(644,1) .
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Frequently Asked Questions on HCF of 98, 68, 87, 644 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 98, 68, 87, 644?
Answer: HCF of 98, 68, 87, 644 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 98, 68, 87, 644 using Euclid's Algorithm?
Answer: For arbitrary numbers 98, 68, 87, 644 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.