Highest Common Factor of 742, 490 using Euclid's algorithm
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 742, 490 i.e. 14 the largest integer that leaves a remainder zero for all numbers.
HCF of 742, 490 is 14 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 742, 490 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 742, 490 is 14.
HCF(742, 490) = 14
HCF of 742, 490 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 742, 490 is 14.
Highest Common Factor of 742,490 is 14
Step 1: Since 742 > 490, we apply the division lemma to 742 and 490, to get
742 = 490 x 1 + 252
Step 2: Since the reminder 490 ≠ 0, we apply division lemma to 252 and 490, to get
490 = 252 x 1 + 238
Step 3: We consider the new divisor 252 and the new remainder 238, and apply the division lemma to get
252 = 238 x 1 + 14
We consider the new divisor 238 and the new remainder 14, and apply the division lemma to get
238 = 14 x 17 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 14, the HCF of 742 and 490 is 14
Notice that 14 = HCF(238,14) = HCF(252,238) = HCF(490,252) = HCF(742,490) .
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Frequently Asked Questions on HCF of 742, 490 using Euclid's Algorithm
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 742, 490?
Answer: HCF of 742, 490 is 14 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 742, 490 using Euclid's Algorithm?
Answer: For arbitrary numbers 742, 490 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.