Highest Common Factor of 638, 890, 672 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, 890, 672 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 638, 890, 672 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, 890, 672 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, 890, 672 is 2.
HCF(638, 890, 672) = 2
HCF of 638, 890, 672 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, 890, 672 is 2.
Highest Common Factor of 638,890,672 is 2
Step 1: Since 890 > 638, we apply the division lemma to 890 and 638, to get
890 = 638 x 1 + 252
Step 2: Since the reminder 638 ≠ 0, we apply division lemma to 252 and 638, to get
638 = 252 x 2 + 134
Step 3: We consider the new divisor 252 and the new remainder 134, and apply the division lemma to get
252 = 134 x 1 + 118
We consider the new divisor 134 and the new remainder 118,and apply the division lemma to get
134 = 118 x 1 + 16
We consider the new divisor 118 and the new remainder 16,and apply the division lemma to get
118 = 16 x 7 + 6
We consider the new divisor 16 and the new remainder 6,and apply the division lemma to get
16 = 6 x 2 + 4
We consider the new divisor 6 and the new remainder 4,and apply the division lemma to get
6 = 4 x 1 + 2
We consider the new divisor 4 and the new remainder 2,and apply the division lemma to get
4 = 2 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 638 and 890 is 2
Notice that 2 = HCF(4,2) = HCF(6,4) = HCF(16,6) = HCF(118,16) = HCF(134,118) = HCF(252,134) = HCF(638,252) = HCF(890,638) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 672 > 2, we apply the division lemma to 672 and 2, to get
672 = 2 x 336 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 2 and 672 is 2
Notice that 2 = HCF(672,2) .
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Frequently Asked Questions on HCF of 638, 890, 672 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, 890, 672?
Answer: HCF of 638, 890, 672 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 638, 890, 672 using Euclid's Algorithm?
Answer: For arbitrary numbers 638, 890, 672 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
