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 680, 977, 868, 40 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 680, 977, 868, 40 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 680, 977, 868, 40 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 680, 977, 868, 40 is 1.
HCF(680, 977, 868, 40) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 680, 977, 868, 40 is 1.
Step 1: Since 977 > 680, we apply the division lemma to 977 and 680, to get
977 = 680 x 1 + 297
Step 2: Since the reminder 680 ≠ 0, we apply division lemma to 297 and 680, to get
680 = 297 x 2 + 86
Step 3: We consider the new divisor 297 and the new remainder 86, and apply the division lemma to get
297 = 86 x 3 + 39
We consider the new divisor 86 and the new remainder 39,and apply the division lemma to get
86 = 39 x 2 + 8
We consider the new divisor 39 and the new remainder 8,and apply the division lemma to get
39 = 8 x 4 + 7
We consider the new divisor 8 and the new remainder 7,and apply the division lemma to get
8 = 7 x 1 + 1
We consider the new divisor 7 and the new remainder 1,and apply the division lemma to get
7 = 1 x 7 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 680 and 977 is 1
Notice that 1 = HCF(7,1) = HCF(8,7) = HCF(39,8) = HCF(86,39) = HCF(297,86) = HCF(680,297) = HCF(977,680) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 868 > 1, we apply the division lemma to 868 and 1, to get
868 = 1 x 868 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 868 is 1
Notice that 1 = HCF(868,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 40 > 1, we apply the division lemma to 40 and 1, to get
40 = 1 x 40 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 40 is 1
Notice that 1 = HCF(40,1) .
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 680, 977, 868, 40?
Answer: HCF of 680, 977, 868, 40 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 680, 977, 868, 40 using Euclid's Algorithm?
Answer: For arbitrary numbers 680, 977, 868, 40 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.