My Maths work lesson 1

 1. Find the definition

Prime numbers	Have Exactly TWO factors
Composite Numbers	They have more than TWO factors
Multiples	a number that may be divided by another by a certain number of times without a remainder.
Factors	Factors are whole numbers that are multiplied together to produce another number.
The number one	define one

2. List all the prime numbers between 1 and 20. 2,3,5,7,11,13,17,19.

 

3. List the factors of 16. 1,2,4,16

 

4. List the factors of 30. 1,2,3,5,6,10,15,30.

 

5. List the first five multiples of 7. 7,14,21,28,35

 

6. List the first five multiples of 10. 10,20,30,40,50

 

7. What is the highest common factor (HCF) of 12 and 18. 6

 

8. What is the lowest common multiple (LCM) of 4 and 6. 2