Highest Common Factor of 393, 938, 400, 781 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, 938, 400, 781 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 393, 938, 400, 781 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, 938, 400, 781 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, 938, 400, 781 is 1.
HCF(393, 938, 400, 781) = 1
HCF of 393, 938, 400, 781 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, 938, 400, 781 is 1.
Highest Common Factor of 393,938,400,781 is 1
Step 1: Since 938 > 393, we apply the division lemma to 938 and 393, to get
938 = 393 x 2 + 152
Step 2: Since the reminder 393 ≠ 0, we apply division lemma to 152 and 393, to get
393 = 152 x 2 + 89
Step 3: We consider the new divisor 152 and the new remainder 89, and apply the division lemma to get
152 = 89 x 1 + 63
We consider the new divisor 89 and the new remainder 63,and apply the division lemma to get
89 = 63 x 1 + 26
We consider the new divisor 63 and the new remainder 26,and apply the division lemma to get
63 = 26 x 2 + 11
We consider the new divisor 26 and the new remainder 11,and apply the division lemma to get
26 = 11 x 2 + 4
We consider the new divisor 11 and the new remainder 4,and apply the division lemma to get
11 = 4 x 2 + 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 393 and 938 is 1
Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(11,4) = HCF(26,11) = HCF(63,26) = HCF(89,63) = HCF(152,89) = HCF(393,152) = HCF(938,393) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 400 > 1, we apply the division lemma to 400 and 1, to get
400 = 1 x 400 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 400 is 1
Notice that 1 = HCF(400,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 781 > 1, we apply the division lemma to 781 and 1, to get
781 = 1 x 781 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 781 is 1
Notice that 1 = HCF(781,1) .
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Frequently Asked Questions on HCF of 393, 938, 400, 781 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, 938, 400, 781?
Answer: HCF of 393, 938, 400, 781 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 393, 938, 400, 781 using Euclid's Algorithm?
Answer: For arbitrary numbers 393, 938, 400, 781 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.