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 392, 621, 794 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 392, 621, 794 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 392, 621, 794 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 392, 621, 794 is 1.
HCF(392, 621, 794) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 392, 621, 794 is 1.
Step 1: Since 621 > 392, we apply the division lemma to 621 and 392, to get
621 = 392 x 1 + 229
Step 2: Since the reminder 392 ≠ 0, we apply division lemma to 229 and 392, to get
392 = 229 x 1 + 163
Step 3: We consider the new divisor 229 and the new remainder 163, and apply the division lemma to get
229 = 163 x 1 + 66
We consider the new divisor 163 and the new remainder 66,and apply the division lemma to get
163 = 66 x 2 + 31
We consider the new divisor 66 and the new remainder 31,and apply the division lemma to get
66 = 31 x 2 + 4
We consider the new divisor 31 and the new remainder 4,and apply the division lemma to get
31 = 4 x 7 + 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 392 and 621 is 1
Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(31,4) = HCF(66,31) = HCF(163,66) = HCF(229,163) = HCF(392,229) = HCF(621,392) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 794 > 1, we apply the division lemma to 794 and 1, to get
794 = 1 x 794 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 794 is 1
Notice that 1 = HCF(794,1) .
Here are some samples of HCF using Euclid's Algorithm calculations.
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 392, 621, 794?
Answer: HCF of 392, 621, 794 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 392, 621, 794 using Euclid's Algorithm?
Answer: For arbitrary numbers 392, 621, 794 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.