Highest Common Factor of 420, 441, 735 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, 441, 735 i.e. 21 the largest integer that leaves a remainder zero for all numbers.

HCF of 420, 441, 735 is 21 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, 441, 735 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, 441, 735 is 21.

HCF(420, 441, 735) = 21

HCF of 420, 441, 735 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, 441, 735 is 21.

Highest Common Factor of 420,441,735 using Euclid's algorithm

Highest Common Factor of 420,441,735 is 21

Step 1: Since 441 > 420, we apply the division lemma to 441 and 420, to get

441 = 420 x 1 + 21

Step 2: Since the reminder 420 ≠ 0, we apply division lemma to 21 and 420, to get

420 = 21 x 20 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 21, the HCF of 420 and 441 is 21

Notice that 21 = HCF(420,21) = HCF(441,420) .


We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma

Step 1: Since 735 > 21, we apply the division lemma to 735 and 21, to get

735 = 21 x 35 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 21, the HCF of 21 and 735 is 21

Notice that 21 = HCF(735,21) .

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Frequently Asked Questions on HCF of 420, 441, 735 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, 441, 735?

Answer: HCF of 420, 441, 735 is 21 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 420, 441, 735 using Euclid's Algorithm?

Answer: For arbitrary numbers 420, 441, 735 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.