# Question: Which Of The Following Is A Pair Of Co Prime?

## Which of the following is a pair of co primes 14 35?

If two numbers are co-prime then the HCF of two numbers must be 1.

In (14, 35), HCF of 14 and 35 is 7.

In (18, 25), HCF of 18 and 25 is 1.

In (31, 93), HCF of 31 and 93 is 31..

## What is the sum of prime factors of 1729?

1729 (number)← 1728 1729 1730 →Factorization7 × 13 × 19Divisors1, 7, 13, 19, 91, 133, 247, 1729Greek numeral,ΑΨΚΘ´Roman numeralMDCCXXIX8 more rows

## What is the LCM of 10 15 and 20?

Answer: The LCM of 5 ,10, 15, 20 is 60. Therefore LCM of 5 ,10, 15, 20 is 60.

## What are the factors of 216?

216 and Level 4216 is a composite number.216 = 6 x 6 x 6, so it is a perfect cube, 6³.Prime factorization: 216 = 2 x 2 x 2 x 3 x 3 x 3, which can be written 216 = 2³ x 3³.The exponents in the prime factorization are 3 and 3. … Factors of 216: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216.More items…•

## How do you find Coprime?

For eg: (2,3), (11,12), (99,100) and so on; they have 1 as their HCF. The sum of any two coprime numbers is always coprime with the product of the same two coprime numbers. For eg: The sum of 2 and 3 is 5 and the product of 2 and 3 is 6. Hence, 5 and 6 are coprime numbers.

## What is the factor of 216 and 215?

The factors of 216 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108 and 216. The factors of 215 are 1, 5, 43 and 215. So, the Greatest Common Factor for these numbers is 1 because it divides all them without a remainder.

## Which of the following is a pair of co prime numbers?

Every prime number is co-prime to each other: As every prime number have only two factors 1 and the number itself, the only common factor of two prime numbers will be 1. For example, 2 and 3 are two prime numbers. Factors of 2 are 1, 2 and factors of 3 are 1, 3. The only common factor is 1 and hence is co-prime.

## Which of the following pairs is not co prime?

11,1,3,31,33 are not co prime number.

## Are 15 and 37 Coprime numbers?

Factors of 15 are 1, 3, 5 and 15. Factors of 37 are 1 and 37. Therefore, 1 is the only common factor of 15 and 37 which means that 15 and 37 are co-prime.

## Is 216 and 215 are Coprime numbers?

Which of the following numbers are co-prime: (a) 18 and 35 (b) 15 and 37 (c) 30 and 415 (d) 17 and 168 (e) 216 and 215 (f) 81 and 16. Answer: … Since both have only one common factor, i.e., 1, therefore, they are co-prime numbers.

## What is Coprime number?

In number theory, two integers a and b are said to be relatively prime, mutually prime, or coprime (also written co-prime) if the only positive integer (factor) that divides both of them is 1. … A set of integers can also be called coprime if its elements share no common positive factor except 1.