# What is the sum of prime number between 20 and 30?

Table of Contents

## What is the sum of prime number between 20 and 30?

prime no. s between 20 to 30 are 23 and 29. so, the sum = 23+29 = 52.

## What is the average of the prime numbers between 20 and 30?

There is only 2 prime number between 20 and 30 that is..23 and 29.. =26 ans. This discussion on The mean of prime numbers between 20 and 30 is:a) 26b) 27c) 25d) 28The correct answer is option ‘A’.

## What is the sum of prime numbers between 20?

According to the list of prime numbers 1 to 20, the prime numbers from 1 to 20 are 2, 3, 5, 7, 11, 13, 17, and 19. The sum of 2, 3, 5, 7, 11, 13, 17, and 19 are, 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 = 77. The sum of the prime numbers from 1 to 20 is 77.

## What is the sum of all composite number between 20 and 30?

Step-by-step explanation: the sum of the composite numbers between 20 and 30 ,minus the sum of the prime numbers less than 20. Composite numbers are those positive integers that are NOT prime. If you add the composites, you get 173 .

## What is the prime number between 10 and 20?

(b) The primes between 10 and 20 are 11, 13, 17, and 19 – four.

## What is the sum of the prime numbers between 10 and 20?

ANS: The sum of all the prime numbers between 10 and 20 is 60.

## What is the sum of the first 4 prime numbers?

17

First, four prime numbers are 2, 3, 5, and 7. The sum of the first n = 4 prime numbers is 2 + 3 + 5 + 7 = 17.

## What are the composite numbers between 10 and 30?

11, 13, 17, 19,23, 29.

## What are composite numbers less than 20?

prime numbers and composite numbers less than 20 are, prime numbers: 2, 3, 5, 7, 11, 13, 17, 19. composite numbers: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18.

## Can the sum of two primes be prime?

Every integer that can be written as the sum of two primes can also be written as the sum of as many primes as one wishes, until all terms are units. Goldbach was following the now-abandoned convention of considering 1 to be a prime number, so that a sum of units would indeed be a sum of primes.

## What is the sum of the prime numbers between 20 and 30?

The prime numbers between 20 and 30 are 23 and 29. Sum = 23 + 29 = 52. Concept of prime numbers and composite numbers, common factor, co-prime num… Write seven consecutive composite numbers less than 100 and more than equal to 90. Two consecutive odd prime numbers are known as twin primes.

## What is sum of prime numbers between 50 and 100?

Write all pairs of twin primes between 50 and 100. Express 63 and 49 as sum of three odd prime numbers. The numbers 2 and 3 are prime numbers and their sum 5 is also a prime number, find five more such pairs of prime numbers. Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.

## Are there any numbers between 20 and 30?

The numbers between 20 and 30 are: 21,22,23,24,25,26,27,28,29 Even numbers, other than 2 are not prime because by definition of being even they are divisible by 2.

## Which is the sum of two odd prime numbers?

Write seven consecutive composite numbers less than 100 and more than equal to 90. Two consecutive odd prime numbers are known as twin primes. Write all pairs of twin primes between 50 and 100. Express 63 and 49 as sum of three odd prime numbers.