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 656, 905, 495 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 656, 905, 495 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 656, 905, 495 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 656, 905, 495 is 1.
HCF(656, 905, 495) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 656, 905, 495 is 1.
Step 1: Since 905 > 656, we apply the division lemma to 905 and 656, to get
905 = 656 x 1 + 249
Step 2: Since the reminder 656 ≠ 0, we apply division lemma to 249 and 656, to get
656 = 249 x 2 + 158
Step 3: We consider the new divisor 249 and the new remainder 158, and apply the division lemma to get
249 = 158 x 1 + 91
We consider the new divisor 158 and the new remainder 91,and apply the division lemma to get
158 = 91 x 1 + 67
We consider the new divisor 91 and the new remainder 67,and apply the division lemma to get
91 = 67 x 1 + 24
We consider the new divisor 67 and the new remainder 24,and apply the division lemma to get
67 = 24 x 2 + 19
We consider the new divisor 24 and the new remainder 19,and apply the division lemma to get
24 = 19 x 1 + 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 656 and 905 is 1
Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(19,5) = HCF(24,19) = HCF(67,24) = HCF(91,67) = HCF(158,91) = HCF(249,158) = HCF(656,249) = HCF(905,656) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 495 > 1, we apply the division lemma to 495 and 1, to get
495 = 1 x 495 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 495 is 1
Notice that 1 = HCF(495,1) .
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 656, 905, 495?
Answer: HCF of 656, 905, 495 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 656, 905, 495 using Euclid's Algorithm?
Answer: For arbitrary numbers 656, 905, 495 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.