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 921, 272, 478 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 921, 272, 478 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 921, 272, 478 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 921, 272, 478 is 1.
HCF(921, 272, 478) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 921, 272, 478 is 1.
Step 1: Since 921 > 272, we apply the division lemma to 921 and 272, to get
921 = 272 x 3 + 105
Step 2: Since the reminder 272 ≠ 0, we apply division lemma to 105 and 272, to get
272 = 105 x 2 + 62
Step 3: We consider the new divisor 105 and the new remainder 62, and apply the division lemma to get
105 = 62 x 1 + 43
We consider the new divisor 62 and the new remainder 43,and apply the division lemma to get
62 = 43 x 1 + 19
We consider the new divisor 43 and the new remainder 19,and apply the division lemma to get
43 = 19 x 2 + 5
We consider the new divisor 19 and the new remainder 5,and apply the division lemma to get
19 = 5 x 3 + 4
We consider the new divisor 5 and the new remainder 4,and apply the division lemma to get
5 = 4 x 1 + 1
We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get
4 = 1 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 921 and 272 is 1
Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(19,5) = HCF(43,19) = HCF(62,43) = HCF(105,62) = HCF(272,105) = HCF(921,272) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 478 > 1, we apply the division lemma to 478 and 1, to get
478 = 1 x 478 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 478 is 1
Notice that 1 = HCF(478,1) .
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 921, 272, 478?
Answer: HCF of 921, 272, 478 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 921, 272, 478 using Euclid's Algorithm?
Answer: For arbitrary numbers 921, 272, 478 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.