Highest Common Factor of 615, 357, 602 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 615, 357, 602 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 615, 357, 602 is 1 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 615, 357, 602 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 615, 357, 602 is 1.

HCF(615, 357, 602) = 1

HCF of 615, 357, 602 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 615, 357, 602 is 1.

Highest Common Factor of 615,357,602 using Euclid's algorithm

Highest Common Factor of 615,357,602 is 1

Step 1: Since 615 > 357, we apply the division lemma to 615 and 357, to get

615 = 357 x 1 + 258

Step 2: Since the reminder 357 ≠ 0, we apply division lemma to 258 and 357, to get

357 = 258 x 1 + 99

Step 3: We consider the new divisor 258 and the new remainder 99, and apply the division lemma to get

258 = 99 x 2 + 60

We consider the new divisor 99 and the new remainder 60,and apply the division lemma to get

99 = 60 x 1 + 39

We consider the new divisor 60 and the new remainder 39,and apply the division lemma to get

60 = 39 x 1 + 21

We consider the new divisor 39 and the new remainder 21,and apply the division lemma to get

39 = 21 x 1 + 18

We consider the new divisor 21 and the new remainder 18,and apply the division lemma to get

21 = 18 x 1 + 3

We consider the new divisor 18 and the new remainder 3,and apply the division lemma to get

18 = 3 x 6 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 615 and 357 is 3

Notice that 3 = HCF(18,3) = HCF(21,18) = HCF(39,21) = HCF(60,39) = HCF(99,60) = HCF(258,99) = HCF(357,258) = HCF(615,357) .


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

Step 1: Since 602 > 3, we apply the division lemma to 602 and 3, to get

602 = 3 x 200 + 2

Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 2 and 3, to get

3 = 2 x 1 + 1

Step 3: We consider the new divisor 2 and the new remainder 1, and apply the division lemma to get

2 = 1 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 3 and 602 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(602,3) .

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Frequently Asked Questions on HCF of 615, 357, 602 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 615, 357, 602?

Answer: HCF of 615, 357, 602 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 615, 357, 602 using Euclid's Algorithm?

Answer: For arbitrary numbers 615, 357, 602 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.