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 705, 128, 942 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 705, 128, 942 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 705, 128, 942 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 705, 128, 942 is 1.
HCF(705, 128, 942) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 705, 128, 942 is 1.
Step 1: Since 705 > 128, we apply the division lemma to 705 and 128, to get
705 = 128 x 5 + 65
Step 2: Since the reminder 128 ≠ 0, we apply division lemma to 65 and 128, to get
128 = 65 x 1 + 63
Step 3: We consider the new divisor 65 and the new remainder 63, and apply the division lemma to get
65 = 63 x 1 + 2
We consider the new divisor 63 and the new remainder 2,and apply the division lemma to get
63 = 2 x 31 + 1
We consider the new divisor 2 and the new remainder 1,and apply the division lemma 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 705 and 128 is 1
Notice that 1 = HCF(2,1) = HCF(63,2) = HCF(65,63) = HCF(128,65) = HCF(705,128) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 942 > 1, we apply the division lemma to 942 and 1, to get
942 = 1 x 942 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 942 is 1
Notice that 1 = HCF(942,1) .
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 705, 128, 942?
Answer: HCF of 705, 128, 942 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 705, 128, 942 using Euclid's Algorithm?
Answer: For arbitrary numbers 705, 128, 942 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.