Highest Common Factor of 355, 1688 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 355, 1688 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 355, 1688 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 355, 1688 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 355, 1688 is 1.

HCF(355, 1688) = 1

HCF of 355, 1688 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 355, 1688 is 1.

Highest Common Factor of 355,1688 using Euclid's algorithm

Highest Common Factor of 355,1688 is 1

Step 1: Since 1688 > 355, we apply the division lemma to 1688 and 355, to get

1688 = 355 x 4 + 268

Step 2: Since the reminder 355 ≠ 0, we apply division lemma to 268 and 355, to get

355 = 268 x 1 + 87

Step 3: We consider the new divisor 268 and the new remainder 87, and apply the division lemma to get

268 = 87 x 3 + 7

We consider the new divisor 87 and the new remainder 7,and apply the division lemma to get

87 = 7 x 12 + 3

We consider the new divisor 7 and the new remainder 3,and apply the division lemma to get

7 = 3 x 2 + 1

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

3 = 1 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 355 and 1688 is 1

Notice that 1 = HCF(3,1) = HCF(7,3) = HCF(87,7) = HCF(268,87) = HCF(355,268) = HCF(1688,355) .

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Frequently Asked Questions on HCF of 355, 1688 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 355, 1688?

Answer: HCF of 355, 1688 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 355, 1688 using Euclid's Algorithm?

Answer: For arbitrary numbers 355, 1688 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.