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 247, 634, 660 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 247, 634, 660 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 247, 634, 660 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 247, 634, 660 is 1.
HCF(247, 634, 660) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 247, 634, 660 is 1.
Step 1: Since 634 > 247, we apply the division lemma to 634 and 247, to get
634 = 247 x 2 + 140
Step 2: Since the reminder 247 ≠ 0, we apply division lemma to 140 and 247, to get
247 = 140 x 1 + 107
Step 3: We consider the new divisor 140 and the new remainder 107, and apply the division lemma to get
140 = 107 x 1 + 33
We consider the new divisor 107 and the new remainder 33,and apply the division lemma to get
107 = 33 x 3 + 8
We consider the new divisor 33 and the new remainder 8,and apply the division lemma to get
33 = 8 x 4 + 1
We consider the new divisor 8 and the new remainder 1,and apply the division lemma to get
8 = 1 x 8 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 247 and 634 is 1
Notice that 1 = HCF(8,1) = HCF(33,8) = HCF(107,33) = HCF(140,107) = HCF(247,140) = HCF(634,247) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 660 > 1, we apply the division lemma to 660 and 1, to get
660 = 1 x 660 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 660 is 1
Notice that 1 = HCF(660,1) .
Here are some samples of HCF using Euclid's Algorithm calculations.
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 247, 634, 660?
Answer: HCF of 247, 634, 660 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 247, 634, 660 using Euclid's Algorithm?
Answer: For arbitrary numbers 247, 634, 660 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.