Highest Common Factor of 774, 421, 99 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 774, 421, 99 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 774, 421, 99 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 774, 421, 99 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 774, 421, 99 is 1.
HCF(774, 421, 99) = 1
HCF of 774, 421, 99 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 774, 421, 99 is 1.
Highest Common Factor of 774,421,99 is 1
Step 1: Since 774 > 421, we apply the division lemma to 774 and 421, to get
774 = 421 x 1 + 353
Step 2: Since the reminder 421 ≠ 0, we apply division lemma to 353 and 421, to get
421 = 353 x 1 + 68
Step 3: We consider the new divisor 353 and the new remainder 68, and apply the division lemma to get
353 = 68 x 5 + 13
We consider the new divisor 68 and the new remainder 13,and apply the division lemma to get
68 = 13 x 5 + 3
We consider the new divisor 13 and the new remainder 3,and apply the division lemma to get
13 = 3 x 4 + 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 774 and 421 is 1
Notice that 1 = HCF(3,1) = HCF(13,3) = HCF(68,13) = HCF(353,68) = HCF(421,353) = HCF(774,421) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 99 > 1, we apply the division lemma to 99 and 1, to get
99 = 1 x 99 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 99 is 1
Notice that 1 = HCF(99,1) .
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Frequently Asked Questions on HCF of 774, 421, 99 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 774, 421, 99?
Answer: HCF of 774, 421, 99 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 774, 421, 99 using Euclid's Algorithm?
Answer: For arbitrary numbers 774, 421, 99 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.