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 862, 660, 249 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 862, 660, 249 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 862, 660, 249 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 862, 660, 249 is 1.
HCF(862, 660, 249) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 862, 660, 249 is 1.
Step 1: Since 862 > 660, we apply the division lemma to 862 and 660, to get
862 = 660 x 1 + 202
Step 2: Since the reminder 660 ≠ 0, we apply division lemma to 202 and 660, to get
660 = 202 x 3 + 54
Step 3: We consider the new divisor 202 and the new remainder 54, and apply the division lemma to get
202 = 54 x 3 + 40
We consider the new divisor 54 and the new remainder 40,and apply the division lemma to get
54 = 40 x 1 + 14
We consider the new divisor 40 and the new remainder 14,and apply the division lemma to get
40 = 14 x 2 + 12
We consider the new divisor 14 and the new remainder 12,and apply the division lemma to get
14 = 12 x 1 + 2
We consider the new divisor 12 and the new remainder 2,and apply the division lemma to get
12 = 2 x 6 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 862 and 660 is 2
Notice that 2 = HCF(12,2) = HCF(14,12) = HCF(40,14) = HCF(54,40) = HCF(202,54) = HCF(660,202) = HCF(862,660) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 249 > 2, we apply the division lemma to 249 and 2, to get
249 = 2 x 124 + 1
Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, to get
2 = 1 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 2 and 249 is 1
Notice that 1 = HCF(2,1) = HCF(249,2) .
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 862, 660, 249?
Answer: HCF of 862, 660, 249 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 862, 660, 249 using Euclid's Algorithm?
Answer: For arbitrary numbers 862, 660, 249 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.