Highest Common Factor of 121, 655, 13, 776 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 121, 655, 13, 776 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 121, 655, 13, 776 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 121, 655, 13, 776 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 121, 655, 13, 776 is 1.
HCF(121, 655, 13, 776) = 1
HCF of 121, 655, 13, 776 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 121, 655, 13, 776 is 1.
Highest Common Factor of 121,655,13,776 is 1
Step 1: Since 655 > 121, we apply the division lemma to 655 and 121, to get
655 = 121 x 5 + 50
Step 2: Since the reminder 121 ≠ 0, we apply division lemma to 50 and 121, to get
121 = 50 x 2 + 21
Step 3: We consider the new divisor 50 and the new remainder 21, and apply the division lemma to get
50 = 21 x 2 + 8
We consider the new divisor 21 and the new remainder 8,and apply the division lemma to get
21 = 8 x 2 + 5
We consider the new divisor 8 and the new remainder 5,and apply the division lemma to get
8 = 5 x 1 + 3
We consider the new divisor 5 and the new remainder 3,and apply the division lemma to get
5 = 3 x 1 + 2
We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get
3 = 2 x 1 + 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 121 and 655 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(8,5) = HCF(21,8) = HCF(50,21) = HCF(121,50) = HCF(655,121) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 13 > 1, we apply the division lemma to 13 and 1, to get
13 = 1 x 13 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 13 is 1
Notice that 1 = HCF(13,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 776 > 1, we apply the division lemma to 776 and 1, to get
776 = 1 x 776 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 776 is 1
Notice that 1 = HCF(776,1) .
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Frequently Asked Questions on HCF of 121, 655, 13, 776 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 121, 655, 13, 776?
Answer: HCF of 121, 655, 13, 776 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 121, 655, 13, 776 using Euclid's Algorithm?
Answer: For arbitrary numbers 121, 655, 13, 776 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
