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 124, 221, 841 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 124, 221, 841 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 124, 221, 841 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 124, 221, 841 is 1.
HCF(124, 221, 841) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 124, 221, 841 is 1.
Step 1: Since 221 > 124, we apply the division lemma to 221 and 124, to get
221 = 124 x 1 + 97
Step 2: Since the reminder 124 ≠ 0, we apply division lemma to 97 and 124, to get
124 = 97 x 1 + 27
Step 3: We consider the new divisor 97 and the new remainder 27, and apply the division lemma to get
97 = 27 x 3 + 16
We consider the new divisor 27 and the new remainder 16,and apply the division lemma to get
27 = 16 x 1 + 11
We consider the new divisor 16 and the new remainder 11,and apply the division lemma to get
16 = 11 x 1 + 5
We consider the new divisor 11 and the new remainder 5,and apply the division lemma to get
11 = 5 x 2 + 1
We consider the new divisor 5 and the new remainder 1,and apply the division lemma to get
5 = 1 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 124 and 221 is 1
Notice that 1 = HCF(5,1) = HCF(11,5) = HCF(16,11) = HCF(27,16) = HCF(97,27) = HCF(124,97) = HCF(221,124) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 841 > 1, we apply the division lemma to 841 and 1, to get
841 = 1 x 841 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 841 is 1
Notice that 1 = HCF(841,1) .
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 124, 221, 841?
Answer: HCF of 124, 221, 841 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 124, 221, 841 using Euclid's Algorithm?
Answer: For arbitrary numbers 124, 221, 841 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.