Highest Common Factor of 938, 161, 45 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 938, 161, 45 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 938, 161, 45 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 938, 161, 45 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 938, 161, 45 is 1.
HCF(938, 161, 45) = 1
HCF of 938, 161, 45 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 938, 161, 45 is 1.
Highest Common Factor of 938,161,45 is 1
Step 1: Since 938 > 161, we apply the division lemma to 938 and 161, to get
938 = 161 x 5 + 133
Step 2: Since the reminder 161 ≠ 0, we apply division lemma to 133 and 161, to get
161 = 133 x 1 + 28
Step 3: We consider the new divisor 133 and the new remainder 28, and apply the division lemma to get
133 = 28 x 4 + 21
We consider the new divisor 28 and the new remainder 21,and apply the division lemma to get
28 = 21 x 1 + 7
We consider the new divisor 21 and the new remainder 7,and apply the division lemma to get
21 = 7 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 938 and 161 is 7
Notice that 7 = HCF(21,7) = HCF(28,21) = HCF(133,28) = HCF(161,133) = HCF(938,161) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 45 > 7, we apply the division lemma to 45 and 7, to get
45 = 7 x 6 + 3
Step 2: Since the reminder 7 ≠ 0, we apply division lemma to 3 and 7, to get
7 = 3 x 2 + 1
Step 3: 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 7 and 45 is 1
Notice that 1 = HCF(3,1) = HCF(7,3) = HCF(45,7) .
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Frequently Asked Questions on HCF of 938, 161, 45 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 938, 161, 45?
Answer: HCF of 938, 161, 45 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 938, 161, 45 using Euclid's Algorithm?
Answer: For arbitrary numbers 938, 161, 45 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.