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 917, 544, 245, 618 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 917, 544, 245, 618 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 917, 544, 245, 618 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 917, 544, 245, 618 is 1.
HCF(917, 544, 245, 618) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 917, 544, 245, 618 is 1.
Step 1: Since 917 > 544, we apply the division lemma to 917 and 544, to get
917 = 544 x 1 + 373
Step 2: Since the reminder 544 ≠ 0, we apply division lemma to 373 and 544, to get
544 = 373 x 1 + 171
Step 3: We consider the new divisor 373 and the new remainder 171, and apply the division lemma to get
373 = 171 x 2 + 31
We consider the new divisor 171 and the new remainder 31,and apply the division lemma to get
171 = 31 x 5 + 16
We consider the new divisor 31 and the new remainder 16,and apply the division lemma to get
31 = 16 x 1 + 15
We consider the new divisor 16 and the new remainder 15,and apply the division lemma to get
16 = 15 x 1 + 1
We consider the new divisor 15 and the new remainder 1,and apply the division lemma to get
15 = 1 x 15 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 917 and 544 is 1
Notice that 1 = HCF(15,1) = HCF(16,15) = HCF(31,16) = HCF(171,31) = HCF(373,171) = HCF(544,373) = HCF(917,544) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 245 > 1, we apply the division lemma to 245 and 1, to get
245 = 1 x 245 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 245 is 1
Notice that 1 = HCF(245,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 618 > 1, we apply the division lemma to 618 and 1, to get
618 = 1 x 618 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 618 is 1
Notice that 1 = HCF(618,1) .
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 917, 544, 245, 618?
Answer: HCF of 917, 544, 245, 618 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 917, 544, 245, 618 using Euclid's Algorithm?
Answer: For arbitrary numbers 917, 544, 245, 618 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.