Highest Common Factor of 638, 460, 804 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 638, 460, 804 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 638, 460, 804 is 2 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 638, 460, 804 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 638, 460, 804 is 2.
HCF(638, 460, 804) = 2
HCF of 638, 460, 804 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 638, 460, 804 is 2.
Highest Common Factor of 638,460,804 is 2
Step 1: Since 638 > 460, we apply the division lemma to 638 and 460, to get
638 = 460 x 1 + 178
Step 2: Since the reminder 460 ≠ 0, we apply division lemma to 178 and 460, to get
460 = 178 x 2 + 104
Step 3: We consider the new divisor 178 and the new remainder 104, and apply the division lemma to get
178 = 104 x 1 + 74
We consider the new divisor 104 and the new remainder 74,and apply the division lemma to get
104 = 74 x 1 + 30
We consider the new divisor 74 and the new remainder 30,and apply the division lemma to get
74 = 30 x 2 + 14
We consider the new divisor 30 and the new remainder 14,and apply the division lemma to get
30 = 14 x 2 + 2
We consider the new divisor 14 and the new remainder 2,and apply the division lemma to get
14 = 2 x 7 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 638 and 460 is 2
Notice that 2 = HCF(14,2) = HCF(30,14) = HCF(74,30) = HCF(104,74) = HCF(178,104) = HCF(460,178) = HCF(638,460) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 804 > 2, we apply the division lemma to 804 and 2, to get
804 = 2 x 402 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 2 and 804 is 2
Notice that 2 = HCF(804,2) .
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Frequently Asked Questions on HCF of 638, 460, 804 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 638, 460, 804?
Answer: HCF of 638, 460, 804 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 638, 460, 804 using Euclid's Algorithm?
Answer: For arbitrary numbers 638, 460, 804 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.