Highest Common Factor of 657, 1855 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 657, 1855 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 657, 1855 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 657, 1855 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 657, 1855 is 1.
HCF(657, 1855) = 1
HCF of 657, 1855 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 657, 1855 is 1.
Highest Common Factor of 657,1855 is 1
Step 1: Since 1855 > 657, we apply the division lemma to 1855 and 657, to get
1855 = 657 x 2 + 541
Step 2: Since the reminder 657 ≠ 0, we apply division lemma to 541 and 657, to get
657 = 541 x 1 + 116
Step 3: We consider the new divisor 541 and the new remainder 116, and apply the division lemma to get
541 = 116 x 4 + 77
We consider the new divisor 116 and the new remainder 77,and apply the division lemma to get
116 = 77 x 1 + 39
We consider the new divisor 77 and the new remainder 39,and apply the division lemma to get
77 = 39 x 1 + 38
We consider the new divisor 39 and the new remainder 38,and apply the division lemma to get
39 = 38 x 1 + 1
We consider the new divisor 38 and the new remainder 1,and apply the division lemma to get
38 = 1 x 38 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 657 and 1855 is 1
Notice that 1 = HCF(38,1) = HCF(39,38) = HCF(77,39) = HCF(116,77) = HCF(541,116) = HCF(657,541) = HCF(1855,657) .
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Frequently Asked Questions on HCF of 657, 1855 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 657, 1855?
Answer: HCF of 657, 1855 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 657, 1855 using Euclid's Algorithm?
Answer: For arbitrary numbers 657, 1855 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.