Highest Common Factor of 945, 634, 438 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 945, 634, 438 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 945, 634, 438 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 945, 634, 438 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 945, 634, 438 is 1.
HCF(945, 634, 438) = 1
HCF of 945, 634, 438 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 945, 634, 438 is 1.
Highest Common Factor of 945,634,438 is 1
Step 1: Since 945 > 634, we apply the division lemma to 945 and 634, to get
945 = 634 x 1 + 311
Step 2: Since the reminder 634 ≠ 0, we apply division lemma to 311 and 634, to get
634 = 311 x 2 + 12
Step 3: We consider the new divisor 311 and the new remainder 12, and apply the division lemma to get
311 = 12 x 25 + 11
We consider the new divisor 12 and the new remainder 11,and apply the division lemma to get
12 = 11 x 1 + 1
We consider the new divisor 11 and the new remainder 1,and apply the division lemma to get
11 = 1 x 11 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 945 and 634 is 1
Notice that 1 = HCF(11,1) = HCF(12,11) = HCF(311,12) = HCF(634,311) = HCF(945,634) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 438 > 1, we apply the division lemma to 438 and 1, to get
438 = 1 x 438 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 438 is 1
Notice that 1 = HCF(438,1) .
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Frequently Asked Questions on HCF of 945, 634, 438 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 945, 634, 438?
Answer: HCF of 945, 634, 438 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 945, 634, 438 using Euclid's Algorithm?
Answer: For arbitrary numbers 945, 634, 438 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.