Which of the following are coprime

Co prime numbers are those numbers that have only one common factor, namely 1. That means a pair of numbers are said to be co prime when they have their highest common factor as 1.

Concept used:. A set of two numbers having only one common factor, and that pair can not be divided by any number except 1, is called a co-prime number. Numbers have common factors except 1, Hence Non-co-prime numbers. Numbers have no common factors except 1, Hence 25 and 31 are co-prime numbers. Last updated on Feb 27, Get Started.

Which of the following are coprime

We will be using the concept of co-prime numbers to solve this. Factors of 18 are 1, 2, 3, 6, 9, 18 Factors of 35 are 1, 5, 7, 35 The common factor of 18 and 35 is only 1. Therefore, 18 and 35 are co-prime. Factors of 15 are 1, 3, 5, 15 Factors of 37 are 1, 37 The common factor of 15 and 37 is only 1. Therefore, 15 and 37 are co-prime. Factors of 30 are 1, 2, 3, 5, 6, 15, 30 Factors of are 1, 5, 83, The common factors of 30 and are 1 and 5. Therefore, 30 and are not co-prime. Therefore, 17 and 68 are not co-prime. Therefore, and are co-prime. Therefore, they are co-prime.

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Co-prime numbers are a pair of numbers that have no common factor other than 1. Relatively prime or mutually prime numbers are other names for co-prime numbers. The HCF of co-prime numbers is 1, making 1 their only common factor. We can write each number along with 1 as a co-prime pair. Co prime pairs with numbers , starting from 1 are listed in the table below :. A pair of integers is co-prime if there is no other positive integer other than 1 that can divide them both. For instance, 21 and Here, 21 and 22 only share a single factor, which is 1.

Which of the following are coprime

In order to understand the concept of co-prime numbers we first need to learn about factors and why they are useful. Fac tors are numbers that divide other numbers completely. In other words, we get a multiple as the result of multiplying two factors. Read More Read Less. Co-prime numbers are numbers that have no common factor apart from the number 1. Composite numbers are numbers that have more than two positive factors.

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If any equilateral triangle is formed by the same length of the wire then what will be the area of the equilateral triangle? Suggested Test Series. All the numbers which do not have any common factor other than 1 will be the co-prime of the given number. Let x and y be the two coprime numbers. Raj December 18, at pm. Manga travels km to his home, Partly by train and partly by car. The longest piece is 3 times as long as the middle-sized and the shortest piece is 23 centimeters shorter than the longest piece. Find the average of all the prime numbers that lie between 70 and Consider the following numbers : 1. Yes, 1 is coprime to all the numbers. Ananya Pandey June 1, at pm. If I am wrong then please tell me.

Coprime or Relatively Prime or Mutually Prime numbers have no common factors other than 1.

From the properties of coprime numbers, and are not coprime. Therefore, they are co-prime. Go through the co prime numbers examples given below for a better understanding of the concept. Commercial Maths. The longest piece is 3 times as long as the middle-sized and the shortest piece is 23 centimeters shorter than the longest piece. Explore more from Quantitative Aptitude here. For example 5 and 6 is co prime number but their sum 11 and their product 30 is not co prime number. Ansh vishnoi September 18, at pm. A piece of string is 40 centimeters long. Factors of 30 are 1, 2, 3, 5, 6, 15, 30 Factors of are 1, 5, 83, The common factors of 30 and are 1 and 5.