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 121, 998, 651 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 121, 998, 651 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 121, 998, 651 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 121, 998, 651 is 1.
HCF(121, 998, 651) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 121, 998, 651 is 1.
Step 1: Since 998 > 121, we apply the division lemma to 998 and 121, to get
998 = 121 x 8 + 30
Step 2: Since the reminder 121 ≠ 0, we apply division lemma to 30 and 121, to get
121 = 30 x 4 + 1
Step 3: We consider the new divisor 30 and the new remainder 1, and apply the division lemma to get
30 = 1 x 30 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 121 and 998 is 1
Notice that 1 = HCF(30,1) = HCF(121,30) = HCF(998,121) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 651 > 1, we apply the division lemma to 651 and 1, to get
651 = 1 x 651 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 651 is 1
Notice that 1 = HCF(651,1) .
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 121, 998, 651?
Answer: HCF of 121, 998, 651 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 121, 998, 651 using Euclid's Algorithm?
Answer: For arbitrary numbers 121, 998, 651 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.