Highest Common Factor of 639, 470, 162, 680 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 639, 470, 162, 680 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 639, 470, 162, 680 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 639, 470, 162, 680 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 639, 470, 162, 680 is 1.
HCF(639, 470, 162, 680) = 1
HCF of 639, 470, 162, 680 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 639, 470, 162, 680 is 1.
Highest Common Factor of 639,470,162,680 is 1
Step 1: Since 639 > 470, we apply the division lemma to 639 and 470, to get
639 = 470 x 1 + 169
Step 2: Since the reminder 470 ≠ 0, we apply division lemma to 169 and 470, to get
470 = 169 x 2 + 132
Step 3: We consider the new divisor 169 and the new remainder 132, and apply the division lemma to get
169 = 132 x 1 + 37
We consider the new divisor 132 and the new remainder 37,and apply the division lemma to get
132 = 37 x 3 + 21
We consider the new divisor 37 and the new remainder 21,and apply the division lemma to get
37 = 21 x 1 + 16
We consider the new divisor 21 and the new remainder 16,and apply the division lemma to get
21 = 16 x 1 + 5
We consider the new divisor 16 and the new remainder 5,and apply the division lemma to get
16 = 5 x 3 + 1
We consider the new divisor 5 and the new remainder 1,and apply the division lemma to get
5 = 1 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 639 and 470 is 1
Notice that 1 = HCF(5,1) = HCF(16,5) = HCF(21,16) = HCF(37,21) = HCF(132,37) = HCF(169,132) = HCF(470,169) = HCF(639,470) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 162 > 1, we apply the division lemma to 162 and 1, to get
162 = 1 x 162 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 162 is 1
Notice that 1 = HCF(162,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 680 > 1, we apply the division lemma to 680 and 1, to get
680 = 1 x 680 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 680 is 1
Notice that 1 = HCF(680,1) .
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Frequently Asked Questions on HCF of 639, 470, 162, 680 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 639, 470, 162, 680?
Answer: HCF of 639, 470, 162, 680 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 639, 470, 162, 680 using Euclid's Algorithm?
Answer: For arbitrary numbers 639, 470, 162, 680 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.