Highest Common Factor of 345, 161, 631 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 345, 161, 631 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 345, 161, 631 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 345, 161, 631 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 345, 161, 631 is 1.
HCF(345, 161, 631) = 1
HCF of 345, 161, 631 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 345, 161, 631 is 1.
Highest Common Factor of 345,161,631 is 1
Step 1: Since 345 > 161, we apply the division lemma to 345 and 161, to get
345 = 161 x 2 + 23
Step 2: Since the reminder 161 ≠ 0, we apply division lemma to 23 and 161, to get
161 = 23 x 7 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 23, the HCF of 345 and 161 is 23
Notice that 23 = HCF(161,23) = HCF(345,161) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 631 > 23, we apply the division lemma to 631 and 23, to get
631 = 23 x 27 + 10
Step 2: Since the reminder 23 ≠ 0, we apply division lemma to 10 and 23, to get
23 = 10 x 2 + 3
Step 3: We consider the new divisor 10 and the new remainder 3, and apply the division lemma to get
10 = 3 x 3 + 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 23 and 631 is 1
Notice that 1 = HCF(3,1) = HCF(10,3) = HCF(23,10) = HCF(631,23) .
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Frequently Asked Questions on HCF of 345, 161, 631 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 345, 161, 631?
Answer: HCF of 345, 161, 631 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 345, 161, 631 using Euclid's Algorithm?
Answer: For arbitrary numbers 345, 161, 631 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.