Highest Common Factor of 161, 365 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 161, 365 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 161, 365 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 161, 365 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 161, 365 is 1.

HCF(161, 365) = 1

HCF of 161, 365 using Euclid's algorithm

Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.

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Highest common factor (HCF) of 161, 365 is 1.

Highest Common Factor of 161,365 using Euclid's algorithm

Highest Common Factor of 161,365 is 1

Step 1: Since 365 > 161, we apply the division lemma to 365 and 161, to get

365 = 161 x 2 + 43

Step 2: Since the reminder 161 ≠ 0, we apply division lemma to 43 and 161, to get

161 = 43 x 3 + 32

Step 3: We consider the new divisor 43 and the new remainder 32, and apply the division lemma to get

43 = 32 x 1 + 11

We consider the new divisor 32 and the new remainder 11,and apply the division lemma to get

32 = 11 x 2 + 10

We consider the new divisor 11 and the new remainder 10,and apply the division lemma to get

11 = 10 x 1 + 1

We consider the new divisor 10 and the new remainder 1,and apply the division lemma to get

10 = 1 x 10 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 161 and 365 is 1

Notice that 1 = HCF(10,1) = HCF(11,10) = HCF(32,11) = HCF(43,32) = HCF(161,43) = HCF(365,161) .

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Frequently Asked Questions on HCF of 161, 365 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 161, 365?

Answer: HCF of 161, 365 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 161, 365 using Euclid's Algorithm?

Answer: For arbitrary numbers 161, 365 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.