Highest Common Factor of 420, 53439 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, 53439 i.e. 3 the largest integer that leaves a remainder zero for all numbers.

HCF of 420, 53439 is 3 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, 53439 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, 53439 is 3.

HCF(420, 53439) = 3

HCF of 420, 53439 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 420, 53439 is 3.

Highest Common Factor of 420,53439 using Euclid's algorithm

Highest Common Factor of 420,53439 is 3

Step 1: Since 53439 > 420, we apply the division lemma to 53439 and 420, to get

53439 = 420 x 127 + 99

Step 2: Since the reminder 420 ≠ 0, we apply division lemma to 99 and 420, to get

420 = 99 x 4 + 24

Step 3: We consider the new divisor 99 and the new remainder 24, and apply the division lemma to get

99 = 24 x 4 + 3

We consider the new divisor 24 and the new remainder 3, and apply the division lemma to get

24 = 3 x 8 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 420 and 53439 is 3

Notice that 3 = HCF(24,3) = HCF(99,24) = HCF(420,99) = HCF(53439,420) .

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Frequently Asked Questions on HCF of 420, 53439 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, 53439?

Answer: HCF of 420, 53439 is 3 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 420, 53439 using Euclid's Algorithm?

Answer: For arbitrary numbers 420, 53439 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.