Highest Common Factor of 180, 789, 845 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 180, 789, 845 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 180, 789, 845 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 180, 789, 845 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 180, 789, 845 is 1.
HCF(180, 789, 845) = 1
HCF of 180, 789, 845 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 180, 789, 845 is 1.
Highest Common Factor of 180,789,845 is 1
Step 1: Since 789 > 180, we apply the division lemma to 789 and 180, to get
789 = 180 x 4 + 69
Step 2: Since the reminder 180 ≠ 0, we apply division lemma to 69 and 180, to get
180 = 69 x 2 + 42
Step 3: We consider the new divisor 69 and the new remainder 42, and apply the division lemma to get
69 = 42 x 1 + 27
We consider the new divisor 42 and the new remainder 27,and apply the division lemma to get
42 = 27 x 1 + 15
We consider the new divisor 27 and the new remainder 15,and apply the division lemma to get
27 = 15 x 1 + 12
We consider the new divisor 15 and the new remainder 12,and apply the division lemma to get
15 = 12 x 1 + 3
We consider the new divisor 12 and the new remainder 3,and apply the division lemma to get
12 = 3 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 180 and 789 is 3
Notice that 3 = HCF(12,3) = HCF(15,12) = HCF(27,15) = HCF(42,27) = HCF(69,42) = HCF(180,69) = HCF(789,180) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 845 > 3, we apply the division lemma to 845 and 3, to get
845 = 3 x 281 + 2
Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 2 and 3, to get
3 = 2 x 1 + 1
Step 3: We consider the new divisor 2 and the new remainder 1, and apply the division lemma 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 3 and 845 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(845,3) .
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Frequently Asked Questions on HCF of 180, 789, 845 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 180, 789, 845?
Answer: HCF of 180, 789, 845 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 180, 789, 845 using Euclid's Algorithm?
Answer: For arbitrary numbers 180, 789, 845 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.