Highest Common Factor of 1290, 1657 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 1290, 1657 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 1290, 1657 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 1290, 1657 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 1290, 1657 is 1.
HCF(1290, 1657) = 1
HCF of 1290, 1657 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 1290, 1657 is 1.
Highest Common Factor of 1290,1657 is 1
Step 1: Since 1657 > 1290, we apply the division lemma to 1657 and 1290, to get
1657 = 1290 x 1 + 367
Step 2: Since the reminder 1290 ≠ 0, we apply division lemma to 367 and 1290, to get
1290 = 367 x 3 + 189
Step 3: We consider the new divisor 367 and the new remainder 189, and apply the division lemma to get
367 = 189 x 1 + 178
We consider the new divisor 189 and the new remainder 178,and apply the division lemma to get
189 = 178 x 1 + 11
We consider the new divisor 178 and the new remainder 11,and apply the division lemma to get
178 = 11 x 16 + 2
We consider the new divisor 11 and the new remainder 2,and apply the division lemma to get
11 = 2 x 5 + 1
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 1290 and 1657 is 1
Notice that 1 = HCF(2,1) = HCF(11,2) = HCF(178,11) = HCF(189,178) = HCF(367,189) = HCF(1290,367) = HCF(1657,1290) .
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Frequently Asked Questions on HCF of 1290, 1657 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 1290, 1657?
Answer: HCF of 1290, 1657 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 1290, 1657 using Euclid's Algorithm?
Answer: For arbitrary numbers 1290, 1657 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.