Highest Common Factor of 702, 420, 702 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 702, 420, 702 i.e. 6 the largest integer that leaves a remainder zero for all numbers.

HCF of 702, 420, 702 is 6 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 702, 420, 702 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 702, 420, 702 is 6.

HCF(702, 420, 702) = 6

HCF of 702, 420, 702 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 702, 420, 702 is 6.

Highest Common Factor of 702,420,702 using Euclid's algorithm

Highest Common Factor of 702,420,702 is 6

Step 1: Since 702 > 420, we apply the division lemma to 702 and 420, to get

702 = 420 x 1 + 282

Step 2: Since the reminder 420 ≠ 0, we apply division lemma to 282 and 420, to get

420 = 282 x 1 + 138

Step 3: We consider the new divisor 282 and the new remainder 138, and apply the division lemma to get

282 = 138 x 2 + 6

We consider the new divisor 138 and the new remainder 6, and apply the division lemma to get

138 = 6 x 23 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 6, the HCF of 702 and 420 is 6

Notice that 6 = HCF(138,6) = HCF(282,138) = HCF(420,282) = HCF(702,420) .


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

Step 1: Since 702 > 6, we apply the division lemma to 702 and 6, to get

702 = 6 x 117 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 6, the HCF of 6 and 702 is 6

Notice that 6 = HCF(702,6) .

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Frequently Asked Questions on HCF of 702, 420, 702 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 702, 420, 702?

Answer: HCF of 702, 420, 702 is 6 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 702, 420, 702 using Euclid's Algorithm?

Answer: For arbitrary numbers 702, 420, 702 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.