Factors and Multiples
by
punkin0225
Last updated 6 years ago
Discipline:
Math Subject:
Algebra I
Grade:
3


Composite Numbers
Prime Numbers
A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself.Example 2, 3, 5, 7, 11, 13, 17 etc
Is 1 a Prime Number?
Factors and Multiples
Factors and Multiples
Numbers that can be written as a product of two or more prime numbers.Example: 4, 6, 8, 9, 10, 12, 14, 15 etc
Is 1 a composite number?
2 X 3 = 62 and 3 are factors of 6 6 is a multiple of 2 and 3
6 x 2 = 123 x 2 x 2 = 123 and 2 are prime factors of 12.6 is a factor of 12 but it is not a prime factor.
Prime Factors
Factors
List all the factors of 121 X 122 X 63 X 4The factors of 12 are 1, 2, 3, 4, 6 and 12
Square ' Square RootCube ' Cube Root
Note
Note
Prime Factors
A composite number can always be written as a product of its prime factors96 = 2 X 2 X 2 X 2 X 2 X 3 = 2 X 3
5
2 x 2 = 2 = 4
4 = 2
2
2 x 2 x 2 = 2 = 8 = 2
8
2 X 3 X 2 X 3 X 2 X 3 = (2 x 3) x (2 x 3) x (2 x 3)= (2 x 3)
2 x 2 x 2 x 3 x 3 x 3= 2 x 3=(2 x 3)
3
3
3
3
2
3
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