Highest Common Factor of 393, 855, 640, 402 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 393, 855, 640, 402 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 393, 855, 640, 402 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 393, 855, 640, 402 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 393, 855, 640, 402 is 1.
HCF(393, 855, 640, 402) = 1
HCF of 393, 855, 640, 402 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 393, 855, 640, 402 is 1.
Highest Common Factor of 393,855,640,402 is 1
Step 1: Since 855 > 393, we apply the division lemma to 855 and 393, to get
855 = 393 x 2 + 69
Step 2: Since the reminder 393 ≠ 0, we apply division lemma to 69 and 393, to get
393 = 69 x 5 + 48
Step 3: We consider the new divisor 69 and the new remainder 48, and apply the division lemma to get
69 = 48 x 1 + 21
We consider the new divisor 48 and the new remainder 21,and apply the division lemma to get
48 = 21 x 2 + 6
We consider the new divisor 21 and the new remainder 6,and apply the division lemma to get
21 = 6 x 3 + 3
We consider the new divisor 6 and the new remainder 3,and apply the division lemma to get
6 = 3 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 393 and 855 is 3
Notice that 3 = HCF(6,3) = HCF(21,6) = HCF(48,21) = HCF(69,48) = HCF(393,69) = HCF(855,393) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 640 > 3, we apply the division lemma to 640 and 3, to get
640 = 3 x 213 + 1
Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 1 and 3, 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 3 and 640 is 1
Notice that 1 = HCF(3,1) = HCF(640,3) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 402 > 1, we apply the division lemma to 402 and 1, to get
402 = 1 x 402 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 402 is 1
Notice that 1 = HCF(402,1) .
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Frequently Asked Questions on HCF of 393, 855, 640, 402 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 393, 855, 640, 402?
Answer: HCF of 393, 855, 640, 402 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 393, 855, 640, 402 using Euclid's Algorithm?
Answer: For arbitrary numbers 393, 855, 640, 402 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.