Highest Common Factor of 621, 998 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 621, 998 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 621, 998 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 621, 998 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 621, 998 is 1.
HCF(621, 998) = 1
HCF of 621, 998 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 621, 998 is 1.
Highest Common Factor of 621,998 is 1
Step 1: Since 998 > 621, we apply the division lemma to 998 and 621, to get
998 = 621 x 1 + 377
Step 2: Since the reminder 621 ≠ 0, we apply division lemma to 377 and 621, to get
621 = 377 x 1 + 244
Step 3: We consider the new divisor 377 and the new remainder 244, and apply the division lemma to get
377 = 244 x 1 + 133
We consider the new divisor 244 and the new remainder 133,and apply the division lemma to get
244 = 133 x 1 + 111
We consider the new divisor 133 and the new remainder 111,and apply the division lemma to get
133 = 111 x 1 + 22
We consider the new divisor 111 and the new remainder 22,and apply the division lemma to get
111 = 22 x 5 + 1
We consider the new divisor 22 and the new remainder 1,and apply the division lemma to get
22 = 1 x 22 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 621 and 998 is 1
Notice that 1 = HCF(22,1) = HCF(111,22) = HCF(133,111) = HCF(244,133) = HCF(377,244) = HCF(621,377) = HCF(998,621) .
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Frequently Asked Questions on HCF of 621, 998 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 621, 998?
Answer: HCF of 621, 998 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 621, 998 using Euclid's Algorithm?
Answer: For arbitrary numbers 621, 998 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.