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 257, 742 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 257, 742 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 257, 742 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 257, 742 is 1.
HCF(257, 742) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 257, 742 is 1.
Step 1: Since 742 > 257, we apply the division lemma to 742 and 257, to get
742 = 257 x 2 + 228
Step 2: Since the reminder 257 ≠ 0, we apply division lemma to 228 and 257, to get
257 = 228 x 1 + 29
Step 3: We consider the new divisor 228 and the new remainder 29, and apply the division lemma to get
228 = 29 x 7 + 25
We consider the new divisor 29 and the new remainder 25,and apply the division lemma to get
29 = 25 x 1 + 4
We consider the new divisor 25 and the new remainder 4,and apply the division lemma to get
25 = 4 x 6 + 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 257 and 742 is 1
Notice that 1 = HCF(4,1) = HCF(25,4) = HCF(29,25) = HCF(228,29) = HCF(257,228) = HCF(742,257) .
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 257, 742?
Answer: HCF of 257, 742 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 257, 742 using Euclid's Algorithm?
Answer: For arbitrary numbers 257, 742 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.