Highest Common Factor of 457, 789 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 457, 789 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 457, 789 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 457, 789 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 457, 789 is 1.
HCF(457, 789) = 1
HCF of 457, 789 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 457, 789 is 1.
Highest Common Factor of 457,789 is 1
Step 1: Since 789 > 457, we apply the division lemma to 789 and 457, to get
789 = 457 x 1 + 332
Step 2: Since the reminder 457 ≠ 0, we apply division lemma to 332 and 457, to get
457 = 332 x 1 + 125
Step 3: We consider the new divisor 332 and the new remainder 125, and apply the division lemma to get
332 = 125 x 2 + 82
We consider the new divisor 125 and the new remainder 82,and apply the division lemma to get
125 = 82 x 1 + 43
We consider the new divisor 82 and the new remainder 43,and apply the division lemma to get
82 = 43 x 1 + 39
We consider the new divisor 43 and the new remainder 39,and apply the division lemma to get
43 = 39 x 1 + 4
We consider the new divisor 39 and the new remainder 4,and apply the division lemma to get
39 = 4 x 9 + 3
We consider the new divisor 4 and the new remainder 3,and apply the division lemma to get
4 = 3 x 1 + 1
We consider the new divisor 3 and the new remainder 1,and apply the division lemma 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 457 and 789 is 1
Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(39,4) = HCF(43,39) = HCF(82,43) = HCF(125,82) = HCF(332,125) = HCF(457,332) = HCF(789,457) .
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Frequently Asked Questions on HCF of 457, 789 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 457, 789?
Answer: HCF of 457, 789 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 457, 789 using Euclid's Algorithm?
Answer: For arbitrary numbers 457, 789 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.