Highest Common Factor of 438, 658, 690, 27 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 438, 658, 690, 27 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 438, 658, 690, 27 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 438, 658, 690, 27 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 438, 658, 690, 27 is 1.
HCF(438, 658, 690, 27) = 1
HCF of 438, 658, 690, 27 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 438, 658, 690, 27 is 1.
Highest Common Factor of 438,658,690,27 is 1
Step 1: Since 658 > 438, we apply the division lemma to 658 and 438, to get
658 = 438 x 1 + 220
Step 2: Since the reminder 438 ≠ 0, we apply division lemma to 220 and 438, to get
438 = 220 x 1 + 218
Step 3: We consider the new divisor 220 and the new remainder 218, and apply the division lemma to get
220 = 218 x 1 + 2
We consider the new divisor 218 and the new remainder 2, and apply the division lemma to get
218 = 2 x 109 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 438 and 658 is 2
Notice that 2 = HCF(218,2) = HCF(220,218) = HCF(438,220) = HCF(658,438) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 690 > 2, we apply the division lemma to 690 and 2, to get
690 = 2 x 345 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 2 and 690 is 2
Notice that 2 = HCF(690,2) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 27 > 2, we apply the division lemma to 27 and 2, to get
27 = 2 x 13 + 1
Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, to get
2 = 1 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 2 and 27 is 1
Notice that 1 = HCF(2,1) = HCF(27,2) .
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Frequently Asked Questions on HCF of 438, 658, 690, 27 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 438, 658, 690, 27?
Answer: HCF of 438, 658, 690, 27 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 438, 658, 690, 27 using Euclid's Algorithm?
Answer: For arbitrary numbers 438, 658, 690, 27 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.