Highest Common Factor of 391, 505, 424 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 391, 505, 424 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 391, 505, 424 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 391, 505, 424 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 391, 505, 424 is 1.
HCF(391, 505, 424) = 1
HCF of 391, 505, 424 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 391, 505, 424 is 1.
Highest Common Factor of 391,505,424 is 1
Step 1: Since 505 > 391, we apply the division lemma to 505 and 391, to get
505 = 391 x 1 + 114
Step 2: Since the reminder 391 ≠ 0, we apply division lemma to 114 and 391, to get
391 = 114 x 3 + 49
Step 3: We consider the new divisor 114 and the new remainder 49, and apply the division lemma to get
114 = 49 x 2 + 16
We consider the new divisor 49 and the new remainder 16,and apply the division lemma to get
49 = 16 x 3 + 1
We consider the new divisor 16 and the new remainder 1,and apply the division lemma to get
16 = 1 x 16 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 391 and 505 is 1
Notice that 1 = HCF(16,1) = HCF(49,16) = HCF(114,49) = HCF(391,114) = HCF(505,391) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 424 > 1, we apply the division lemma to 424 and 1, to get
424 = 1 x 424 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 424 is 1
Notice that 1 = HCF(424,1) .
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Frequently Asked Questions on HCF of 391, 505, 424 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 391, 505, 424?
Answer: HCF of 391, 505, 424 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 391, 505, 424 using Euclid's Algorithm?
Answer: For arbitrary numbers 391, 505, 424 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.