Highest Common Factor of 789, 285, 142 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 789, 285, 142 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 789, 285, 142 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 789, 285, 142 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 789, 285, 142 is 1.
HCF(789, 285, 142) = 1
HCF of 789, 285, 142 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 789, 285, 142 is 1.
Highest Common Factor of 789,285,142 is 1
Step 1: Since 789 > 285, we apply the division lemma to 789 and 285, to get
789 = 285 x 2 + 219
Step 2: Since the reminder 285 ≠ 0, we apply division lemma to 219 and 285, to get
285 = 219 x 1 + 66
Step 3: We consider the new divisor 219 and the new remainder 66, and apply the division lemma to get
219 = 66 x 3 + 21
We consider the new divisor 66 and the new remainder 21,and apply the division lemma to get
66 = 21 x 3 + 3
We consider the new divisor 21 and the new remainder 3,and apply the division lemma to get
21 = 3 x 7 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 789 and 285 is 3
Notice that 3 = HCF(21,3) = HCF(66,21) = HCF(219,66) = HCF(285,219) = HCF(789,285) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 142 > 3, we apply the division lemma to 142 and 3, to get
142 = 3 x 47 + 1
Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 1 and 3, to get
3 = 1 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 3 and 142 is 1
Notice that 1 = HCF(3,1) = HCF(142,3) .
HCF using Euclid's Algorithm Calculation Examples
Here are some samples of HCF using Euclid's Algorithm calculations.
Frequently Asked Questions on HCF of 789, 285, 142 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 789, 285, 142?
Answer: HCF of 789, 285, 142 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 789, 285, 142 using Euclid's Algorithm?
Answer: For arbitrary numbers 789, 285, 142 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
