Factor and multiple chains

Maths

Multiplication and division

Lucy created four different alternating factor and multiple chains. Her partner, Yasin, has spotted a mistake in one of her chains - can you tell which one?

Gary created a multiples number chain but needs a little help completing it. What are the next two numbers?     3, 6, 18, .... , .....

Samih generated a factors chain, starting at 120. But he also needs a little help finishing it off. Which two numbers should finish the chain?  120, 40, 20, .... , ....

The following sequence is a multiples chain.                                    3, 9, 27, 81, ..... ,334                                                                            But what is the missing value?

The following sequence is an alternating multiple and factor chain. Can you identify the missing value?                     42 - 7 - 28 - 4 - ? - 18 - 54 - 9

Any multiple of 10 cannot be a prime number

Only numbers less than 100 can be prime numbers

The product of two prime numbers is also a prime number

Which of the following statements is TRUE?

Which of the following numbers is NOT a prime number?

Which of the following numbers IS a prime number?

A number can never be a prime number and a squared number

A number can sometimes be a prime number and a squared number

A number will always be a prime number and a squared number

Read the statements below. Can you identify which one is TRUE?

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