Numbers  Multiples, Factors and Primes

Look at these numbers :
1 3 6 9 12
From the numbers above, write down: a multiple of 4 Out of the numbers 1 3 6 9 12, which is a multiple of 4 12✓
 the prime number Which is the prime number 3✓
 two square numbers Two square numbers 1 9✓
 three factors of 27 1 3 9✓
 two numbers, P and Q, that satisfy both P = 2Q and P = √144
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If you know your tables and number bonds, this is quite basic! Make sure you know exactly what a Prime number is. ( For example: How many prime numbers are there on the the six faces of a dice? )  a multiple of 4 Out of the numbers 1 3 6 9 12, which is a multiple of 4 12✓

48 students went on a geography field trip.
Their teachers split them into equal groups.
Suggest five different ways that the
teachers might have split up the students.
A school ran 3 evening classes:
 Conversational French
 Cake Making
 Woodturning.
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 Write down the first five cube numbers.
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 Which of the numbers given in part a) are multiples of 2?
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 Which of the numbers given in part a) are multiples of 3?
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 Which of the numbers given in part a) are multiples of 4?
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 Which of the numbers given in part a) are multiples of 5?
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 Write down the first five cube numbers.
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Express the following as products of powers of prime factors:
 18 _________
 140 _________
 47 _________
The tricky bit is remembering that a prime factorisation includes all the prime factors that multiply to make that number so you've got to repeat some of them.  18 _________

 List the first five prime numbers. _________
 If added together, what is their total? _________
 Write down the prime factorisation of the answer to part b).
_________
 List the first five prime numbers. _________

 List the first five odd numbers. _________
 If added together, what is their total? _________
 Write down the prime factorisation of the answer to part b).
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 List the first five odd numbers. _________
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