Exercise 2b Natural Numbers

Express using index notation :

3 x 3 x 3 x 3

Express using index notation :

13 x 13

Express using index notation :

7 x 7 x 7 x 7 x 7 x 5 x 5

Find the prime factors of 15

• 2

• 3

• 5

• 6

Find the prime factors of 48

• 2

• 3

• 9

• 6

Find the prime factors of 78

• 2

• 3

• 13

• 15

• 16

Find the prime factors of 256

• 2

• 3

• 5

• 8

• 12

Find the prime factors of 605

• 12

• 11

• 5

• 8

• 18

Express using index notation :

16

Express using index notation :

40