Highest Common Factor of 420, 192 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 420, 192 i.e. 12 the largest integer that leaves a remainder zero for all numbers.

HCF of 420, 192 is 12 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 420, 192 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 420, 192 is 12.

HCF(420, 192) = 12

HCF of 420, 192 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 420, 192 is 12.

Highest Common Factor of 420,192 using Euclid's algorithm

Highest Common Factor of 420,192 is 12

Step 1: Since 420 > 192, we apply the division lemma to 420 and 192, to get

420 = 192 x 2 + 36

Step 2: Since the reminder 192 ≠ 0, we apply division lemma to 36 and 192, to get

192 = 36 x 5 + 12

Step 3: We consider the new divisor 36 and the new remainder 12, and apply the division lemma to get

36 = 12 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 12, the HCF of 420 and 192 is 12

Notice that 12 = HCF(36,12) = HCF(192,36) = HCF(420,192) .

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Frequently Asked Questions on HCF of 420, 192 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 420, 192?

Answer: HCF of 420, 192 is 12 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 420, 192 using Euclid's Algorithm?

Answer: For arbitrary numbers 420, 192 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.