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# prime, composite, factors, multiples, square and triangular

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## Kate Learmonth

on 2 June 2015

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#### Transcript of prime, composite, factors, multiples, square and triangular

Factors
Prime Numbers...
are numbers that can only be divided by 1 and itself. Or in other words, 1 and itself are the only FACTORS.
Square Numbers
Square numbers are two of the result of the same number multiplied by itself.
Triangular Numbers
are numbers that can make a triangular dot patter.
Why is knowing our times tables sooooooooooooooooooooooooooooooooooooooooooooooooo important?
Multiples
Multiples are numbers that are achieved by multiplying that number by any other number.

Example:
Multiples of 2: 2, 4, 6, 8, 10, 12
2 x 1 = 2
2 x 2 = 4
2 x 3 = 6
2 x 4 = 8
2 x 5 = 10
prime, composite, factors, multiples, square and triangular numbers
Factors are numbers that are multiplied
together that equal a number.

Example:
Factors of 12 are: 1, 2, 3, 4, 6 and 12

1 x 12 = 12
3 x 4 = 12
2 x 6 = 12

What are the factors of 20?
What are the factors of 16?
What are some multiples of 4?

What are some multiples of 7?
2, 3, 5, 7, 11, 13... etc
Composite Numbers
are the opposite of prime numbers. Numbers that have more factors other than one and itself
1 x 1 = 1
2 x 2 = 4
3 x 3 = 9
4 x 4 = 16
5 x 5 = 25
6 x 6 = 36
7 x 7 = 49
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