Highest Common Factor of 390, 946 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 390, 946 i.e. 2 the largest integer that leaves a remainder zero for all numbers.

HCF of 390, 946 is 2 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 390, 946 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 390, 946 is 2.

HCF(390, 946) = 2

HCF of 390, 946 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 390, 946 is 2.

Highest Common Factor of 390,946 using Euclid's algorithm

Highest Common Factor of 390,946 is 2

Step 1: Since 946 > 390, we apply the division lemma to 946 and 390, to get

946 = 390 x 2 + 166

Step 2: Since the reminder 390 ≠ 0, we apply division lemma to 166 and 390, to get

390 = 166 x 2 + 58

Step 3: We consider the new divisor 166 and the new remainder 58, and apply the division lemma to get

166 = 58 x 2 + 50

We consider the new divisor 58 and the new remainder 50,and apply the division lemma to get

58 = 50 x 1 + 8

We consider the new divisor 50 and the new remainder 8,and apply the division lemma to get

50 = 8 x 6 + 2

We consider the new divisor 8 and the new remainder 2,and apply the division lemma to get

8 = 2 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 390 and 946 is 2

Notice that 2 = HCF(8,2) = HCF(50,8) = HCF(58,50) = HCF(166,58) = HCF(390,166) = HCF(946,390) .

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Frequently Asked Questions on HCF of 390, 946 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 390, 946?

Answer: HCF of 390, 946 is 2 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 390, 946 using Euclid's Algorithm?

Answer: For arbitrary numbers 390, 946 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.