Highest Common Factor of 789, 619, 749 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, 619, 749 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 789, 619, 749 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, 619, 749 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, 619, 749 is 1.
HCF(789, 619, 749) = 1
HCF of 789, 619, 749 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, 619, 749 is 1.
Highest Common Factor of 789,619,749 is 1
Step 1: Since 789 > 619, we apply the division lemma to 789 and 619, to get
789 = 619 x 1 + 170
Step 2: Since the reminder 619 ≠ 0, we apply division lemma to 170 and 619, to get
619 = 170 x 3 + 109
Step 3: We consider the new divisor 170 and the new remainder 109, and apply the division lemma to get
170 = 109 x 1 + 61
We consider the new divisor 109 and the new remainder 61,and apply the division lemma to get
109 = 61 x 1 + 48
We consider the new divisor 61 and the new remainder 48,and apply the division lemma to get
61 = 48 x 1 + 13
We consider the new divisor 48 and the new remainder 13,and apply the division lemma to get
48 = 13 x 3 + 9
We consider the new divisor 13 and the new remainder 9,and apply the division lemma to get
13 = 9 x 1 + 4
We consider the new divisor 9 and the new remainder 4,and apply the division lemma to get
9 = 4 x 2 + 1
We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get
4 = 1 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 789 and 619 is 1
Notice that 1 = HCF(4,1) = HCF(9,4) = HCF(13,9) = HCF(48,13) = HCF(61,48) = HCF(109,61) = HCF(170,109) = HCF(619,170) = HCF(789,619) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 749 > 1, we apply the division lemma to 749 and 1, to get
749 = 1 x 749 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 749 is 1
Notice that 1 = HCF(749,1) .
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, 619, 749 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, 619, 749?
Answer: HCF of 789, 619, 749 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 789, 619, 749 using Euclid's Algorithm?
Answer: For arbitrary numbers 789, 619, 749 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.