Highest Common Factor of 391, 901 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, 901 i.e. 17 the largest integer that leaves a remainder zero for all numbers.

HCF of 391, 901 is 17 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, 901 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, 901 is 17.

HCF(391, 901) = 17

HCF of 391, 901 using Euclid's algorithm

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

HCF of:

Highest common factor (HCF) of 391, 901 is 17.

Highest Common Factor of 391,901 using Euclid's algorithm

Highest Common Factor of 391,901 is 17

Step 1: Since 901 > 391, we apply the division lemma to 901 and 391, to get

901 = 391 x 2 + 119

Step 2: Since the reminder 391 ≠ 0, we apply division lemma to 119 and 391, to get

391 = 119 x 3 + 34

Step 3: We consider the new divisor 119 and the new remainder 34, and apply the division lemma to get

119 = 34 x 3 + 17

We consider the new divisor 34 and the new remainder 17, and apply the division lemma to get

34 = 17 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 17, the HCF of 391 and 901 is 17

Notice that 17 = HCF(34,17) = HCF(119,34) = HCF(391,119) = HCF(901,391) .

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Frequently Asked Questions on HCF of 391, 901 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, 901?

Answer: HCF of 391, 901 is 17 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 391, 901 using Euclid's Algorithm?

Answer: For arbitrary numbers 391, 901 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.