factors and prime numbers when two or more numbers are multiplied to give a certain product, each...
TRANSCRIPT
Factors and Prime Numbers
When two or more numbers are multiplied to give a certain product, each number is called a factor of the product.1 16( )( ) 16 2 8( )( ) 16 4 4( )( ) 16
The numbers 1, 2, 4, 8, and 16 are all factors of 16.
A prime number is a whole number greater than 1 that has no whole number factors other than 1 and itself.
Whole numbers greater than 1 that are not prime numbers are called composite numbers.
Prime Number & Composite Number
ExamplesPrime NumbersPrime Numbers
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101
Factors of Composite NumbersFactors of Composite Numbers
100(1)(100)(2)(50)(4)(25)(5)(20)(10)(10)
68(1)(68)(2)(34)(4)(17)
105(1)(105)
(3)(35)(5)(21)(7)(15)
303(1)(303)
(3)(101)
That was easy
Bases, Exponents, and Powers
24 16Base
Exponent
Power
4 squared equals 16
4 to the 2nd power equals 16
34 64
4 4( )( ) 16
4 cubed equals 64
4 to the 3rd power equals 64( )( )(4 4 4) 64
Base
Exponent
Power
Fractions with Exponents
323
2 2 23 3 3
827
Exact Value
.296296Rational
Approximation
279
7 79 9
4981
.604938
Order of OperationsLet’s look at an example of a
computation with more than one operation.
11 3 2
8 216
11 65
I’ll try doing 11 – 3 first.
Now I’ll try doing 3 times 2 first.
Please Excuse My Dear Aunt Sally
Please Excuse My Dear Aunt Sally
ParenthesesExponentsMultiplicationDivisionAdditionSubtraction
That was easy