Highest Common Factor of 789, 447, 402 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, 447, 402 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 789, 447, 402 is 3 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, 447, 402 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, 447, 402 is 3.
HCF(789, 447, 402) = 3
HCF of 789, 447, 402 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, 447, 402 is 3.
Highest Common Factor of 789,447,402 is 3
Step 1: Since 789 > 447, we apply the division lemma to 789 and 447, to get
789 = 447 x 1 + 342
Step 2: Since the reminder 447 ≠ 0, we apply division lemma to 342 and 447, to get
447 = 342 x 1 + 105
Step 3: We consider the new divisor 342 and the new remainder 105, and apply the division lemma to get
342 = 105 x 3 + 27
We consider the new divisor 105 and the new remainder 27,and apply the division lemma to get
105 = 27 x 3 + 24
We consider the new divisor 27 and the new remainder 24,and apply the division lemma to get
27 = 24 x 1 + 3
We consider the new divisor 24 and the new remainder 3,and apply the division lemma to get
24 = 3 x 8 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 789 and 447 is 3
Notice that 3 = HCF(24,3) = HCF(27,24) = HCF(105,27) = HCF(342,105) = HCF(447,342) = HCF(789,447) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 402 > 3, we apply the division lemma to 402 and 3, to get
402 = 3 x 134 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 3 and 402 is 3
Notice that 3 = HCF(402,3) .
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Frequently Asked Questions on HCF of 789, 447, 402 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, 447, 402?
Answer: HCF of 789, 447, 402 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 789, 447, 402 using Euclid's Algorithm?
Answer: For arbitrary numbers 789, 447, 402 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.