Highest Common Factor of 261, 420, 904 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 261, 420, 904 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 261, 420, 904 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 261, 420, 904 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 261, 420, 904 is 1.
HCF(261, 420, 904) = 1
HCF of 261, 420, 904 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 261, 420, 904 is 1.
Highest Common Factor of 261,420,904 is 1
Step 1: Since 420 > 261, we apply the division lemma to 420 and 261, to get
420 = 261 x 1 + 159
Step 2: Since the reminder 261 ≠ 0, we apply division lemma to 159 and 261, to get
261 = 159 x 1 + 102
Step 3: We consider the new divisor 159 and the new remainder 102, and apply the division lemma to get
159 = 102 x 1 + 57
We consider the new divisor 102 and the new remainder 57,and apply the division lemma to get
102 = 57 x 1 + 45
We consider the new divisor 57 and the new remainder 45,and apply the division lemma to get
57 = 45 x 1 + 12
We consider the new divisor 45 and the new remainder 12,and apply the division lemma to get
45 = 12 x 3 + 9
We consider the new divisor 12 and the new remainder 9,and apply the division lemma to get
12 = 9 x 1 + 3
We consider the new divisor 9 and the new remainder 3,and apply the division lemma to get
9 = 3 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 261 and 420 is 3
Notice that 3 = HCF(9,3) = HCF(12,9) = HCF(45,12) = HCF(57,45) = HCF(102,57) = HCF(159,102) = HCF(261,159) = HCF(420,261) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 904 > 3, we apply the division lemma to 904 and 3, to get
904 = 3 x 301 + 1
Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 1 and 3, 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 3 and 904 is 1
Notice that 1 = HCF(3,1) = HCF(904,3) .
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Frequently Asked Questions on HCF of 261, 420, 904 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 261, 420, 904?
Answer: HCF of 261, 420, 904 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 261, 420, 904 using Euclid's Algorithm?
Answer: For arbitrary numbers 261, 420, 904 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.