Highest Common Factor of 668, 406, 381, 222 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 668, 406, 381, 222 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 668, 406, 381, 222 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 668, 406, 381, 222 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 668, 406, 381, 222 is 1.
HCF(668, 406, 381, 222) = 1
HCF of 668, 406, 381, 222 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 668, 406, 381, 222 is 1.
Highest Common Factor of 668,406,381,222 is 1
Step 1: Since 668 > 406, we apply the division lemma to 668 and 406, to get
668 = 406 x 1 + 262
Step 2: Since the reminder 406 ≠ 0, we apply division lemma to 262 and 406, to get
406 = 262 x 1 + 144
Step 3: We consider the new divisor 262 and the new remainder 144, and apply the division lemma to get
262 = 144 x 1 + 118
We consider the new divisor 144 and the new remainder 118,and apply the division lemma to get
144 = 118 x 1 + 26
We consider the new divisor 118 and the new remainder 26,and apply the division lemma to get
118 = 26 x 4 + 14
We consider the new divisor 26 and the new remainder 14,and apply the division lemma to get
26 = 14 x 1 + 12
We consider the new divisor 14 and the new remainder 12,and apply the division lemma to get
14 = 12 x 1 + 2
We consider the new divisor 12 and the new remainder 2,and apply the division lemma to get
12 = 2 x 6 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 668 and 406 is 2
Notice that 2 = HCF(12,2) = HCF(14,12) = HCF(26,14) = HCF(118,26) = HCF(144,118) = HCF(262,144) = HCF(406,262) = HCF(668,406) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 381 > 2, we apply the division lemma to 381 and 2, to get
381 = 2 x 190 + 1
Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, 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 2 and 381 is 1
Notice that 1 = HCF(2,1) = HCF(381,2) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 222 > 1, we apply the division lemma to 222 and 1, to get
222 = 1 x 222 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 222 is 1
Notice that 1 = HCF(222,1) .
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Frequently Asked Questions on HCF of 668, 406, 381, 222 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 668, 406, 381, 222?
Answer: HCF of 668, 406, 381, 222 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 668, 406, 381, 222 using Euclid's Algorithm?
Answer: For arbitrary numbers 668, 406, 381, 222 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.