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Prime And Composite Numbers Free Doubts and Solutions

CBSE - VI - Mathematics - Playing With Numbers

prime coprime

Asked by ashish80 5th June 2020, 10:40 AM
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CBSE - VI - Mathematics - Playing With Numbers

what is sum of prime numbers between 20 and 30

Asked by dr.borse01 1st June 2020, 6:58 PM
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CBSE - VI - Mathematics - Playing With Numbers

Please explain eps to solve th questions for 5,6 and 7

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Asked by chandrasiddub 21st August 2019, 9:57 PM
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CBSE - VI - Mathematics - Playing With Numbers

Write all the composite numbers (less than 100) which have three factors.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - VI - Mathematics - Playing With Numbers

Write all odd composite numbers less than 30.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - VI - Mathematics - Playing With Numbers

What is the average of first 5 composite numbers?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - VI - Mathematics - Playing With Numbers

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

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - VI - Mathematics - Playing With Numbers

How many pairs of prime numbers are there to express 18 as the sum of two prime numbers?

Asked by Topperlearning User 21st April 2014, 3:15 PM
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CBSE - VI - Mathematics - Playing With 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.

Asked by Topperlearning User 21st April 2014, 3:14 PM
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CBSE - VI - Mathematics - Playing With Numbers

Express 63 and 49 as sum of three odd prime numbers.

Asked by Topperlearning User 21st April 2014, 3:13 PM
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CBSE - VI - Mathematics - Playing With Numbers

Two consecutive odd prime numbers are known as twin primes. Write all pairs of twin primes between 50 and 100.

Asked by Topperlearning User 21st April 2014, 3:12 PM
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CBSE - VI - Mathematics - Playing With Numbers

Write seven consecutive composite numbers less than 100 and more than equal to 90.

Asked by Topperlearning User 21st April 2014, 3:10 PM
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CBSE - VI - Mathematics - Playing With Numbers

What is the difference between the fifth and the second prime numbers coming after 7?

Asked by Topperlearning User 20th March 2013, 2:55 AM
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