Highest Common Factor of 645, 964, 407, 338 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 645, 964, 407, 338 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 645, 964, 407, 338 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 645, 964, 407, 338 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 645, 964, 407, 338 is 1.
HCF(645, 964, 407, 338) = 1
HCF of 645, 964, 407, 338 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 645, 964, 407, 338 is 1.
Highest Common Factor of 645,964,407,338 is 1
Step 1: Since 964 > 645, we apply the division lemma to 964 and 645, to get
964 = 645 x 1 + 319
Step 2: Since the reminder 645 ≠ 0, we apply division lemma to 319 and 645, to get
645 = 319 x 2 + 7
Step 3: We consider the new divisor 319 and the new remainder 7, and apply the division lemma to get
319 = 7 x 45 + 4
We consider the new divisor 7 and the new remainder 4,and apply the division lemma to get
7 = 4 x 1 + 3
We consider the new divisor 4 and the new remainder 3,and apply the division lemma to get
4 = 3 x 1 + 1
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 645 and 964 is 1
Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(7,4) = HCF(319,7) = HCF(645,319) = HCF(964,645) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 407 > 1, we apply the division lemma to 407 and 1, to get
407 = 1 x 407 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 407 is 1
Notice that 1 = HCF(407,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 338 > 1, we apply the division lemma to 338 and 1, to get
338 = 1 x 338 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 338 is 1
Notice that 1 = HCF(338,1) .
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Frequently Asked Questions on HCF of 645, 964, 407, 338 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 645, 964, 407, 338?
Answer: HCF of 645, 964, 407, 338 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 645, 964, 407, 338 using Euclid's Algorithm?
Answer: For arbitrary numbers 645, 964, 407, 338 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.