Last updated at Sept. 21, 2018 by Teachoo

Transcript

Ex 3.2, 3 The numbers 13 and 31 are prime numbers. Both these numbers have same digits 1 and 3. Find such pairs of prime numbers upto 100. Prime numbers are numbers which have only 2 factors - 1 and the number itself. Now, lets see a list of numbers from 1 to 100, and mark which are prime numbers. By seeing the list, the numbers which have the same digits, and are prime are 17, 71 37, 73 79, 97

Ex 3.2

Ex 3.2, 1

Ex 3.2, 2 (a) Important

Ex 3.2, 2 (b)

Ex 3.2, 2 (c)

Ex 3.2, 2 (d)

Ex 3.2, 2 (e)

Ex 3.2, 2 (f)

Ex 3.2, 2 (g)

Ex 3.2, 2 (h)

Ex 3.2, 2 (i)

Ex 3.2, 3 You are here

Ex 3.2, 4

Ex 3.2, 5

Ex 3.2, 6 (a)

Ex 3.2, 6 (b)

Ex 3.2, 6 (c)

Ex 3.2, 6 (d)

Ex 3.2, 7

Ex 3.2, 8 Important

Ex 3.2, 9

Ex 3.2, 10 Important

Ex 3.2, 11

Ex 3.2, 12 Important

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.