Friday, 9 October 2009

Numbers with an odd number of factors

We saw in the session that:

Prime numbers only have two factors {1 and itself}


2 has {1,2}
3 has {1, 3}
5 has {1, 5}

Some numbers have an odd number of factors:
1 only has one factor {1}
4 has {1, 2, 4}
9 has three factors {1, 3, 9}

Can you find any other numbers with an odd number of factors?
What do these numbers have in common?

Thursday, 4 June 2009

Mathtutor - preparing for AS level

Mathtutor are a series of on-line video tutorials, diagnostic tests and summaries dealing with all aspects of the A-level maths course.

A good start, if you want to do AS Maths, is to take a look at the algebra section and work through that. It can be found here.

Tuesday, 24 March 2009

Standard form

Download this worksheet and answer the questions as you watch this video here - about 15 mins long.

Other Maths 4 Real programmes can be found here:

Higher tier only: Tangent ratio; Cumulative frequency; Quadratics; Sine ratio
Foundation: all the rest!

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