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 938, 689, 751 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 938, 689, 751 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 938, 689, 751 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 938, 689, 751 is 1.
HCF(938, 689, 751) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 938, 689, 751 is 1.
Step 1: Since 938 > 689, we apply the division lemma to 938 and 689, to get
938 = 689 x 1 + 249
Step 2: Since the reminder 689 ≠ 0, we apply division lemma to 249 and 689, to get
689 = 249 x 2 + 191
Step 3: We consider the new divisor 249 and the new remainder 191, and apply the division lemma to get
249 = 191 x 1 + 58
We consider the new divisor 191 and the new remainder 58,and apply the division lemma to get
191 = 58 x 3 + 17
We consider the new divisor 58 and the new remainder 17,and apply the division lemma to get
58 = 17 x 3 + 7
We consider the new divisor 17 and the new remainder 7,and apply the division lemma to get
17 = 7 x 2 + 3
We consider the new divisor 7 and the new remainder 3,and apply the division lemma to get
7 = 3 x 2 + 1
We consider the new divisor 3 and the new remainder 1,and apply the division lemma to get
3 = 1 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 938 and 689 is 1
Notice that 1 = HCF(3,1) = HCF(7,3) = HCF(17,7) = HCF(58,17) = HCF(191,58) = HCF(249,191) = HCF(689,249) = HCF(938,689) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 751 > 1, we apply the division lemma to 751 and 1, to get
751 = 1 x 751 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 751 is 1
Notice that 1 = HCF(751,1) .
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 938, 689, 751?
Answer: HCF of 938, 689, 751 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 938, 689, 751 using Euclid's Algorithm?
Answer: For arbitrary numbers 938, 689, 751 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.