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 181, 656, 172, 943 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 181, 656, 172, 943 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 181, 656, 172, 943 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 181, 656, 172, 943 is 1.
HCF(181, 656, 172, 943) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 181, 656, 172, 943 is 1.
Step 1: Since 656 > 181, we apply the division lemma to 656 and 181, to get
656 = 181 x 3 + 113
Step 2: Since the reminder 181 ≠ 0, we apply division lemma to 113 and 181, to get
181 = 113 x 1 + 68
Step 3: We consider the new divisor 113 and the new remainder 68, and apply the division lemma to get
113 = 68 x 1 + 45
We consider the new divisor 68 and the new remainder 45,and apply the division lemma to get
68 = 45 x 1 + 23
We consider the new divisor 45 and the new remainder 23,and apply the division lemma to get
45 = 23 x 1 + 22
We consider the new divisor 23 and the new remainder 22,and apply the division lemma to get
23 = 22 x 1 + 1
We consider the new divisor 22 and the new remainder 1,and apply the division lemma to get
22 = 1 x 22 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 181 and 656 is 1
Notice that 1 = HCF(22,1) = HCF(23,22) = HCF(45,23) = HCF(68,45) = HCF(113,68) = HCF(181,113) = HCF(656,181) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 172 > 1, we apply the division lemma to 172 and 1, to get
172 = 1 x 172 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 172 is 1
Notice that 1 = HCF(172,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 943 > 1, we apply the division lemma to 943 and 1, to get
943 = 1 x 943 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 943 is 1
Notice that 1 = HCF(943,1) .
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 181, 656, 172, 943?
Answer: HCF of 181, 656, 172, 943 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 181, 656, 172, 943 using Euclid's Algorithm?
Answer: For arbitrary numbers 181, 656, 172, 943 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.