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Vocabulary
Prime and composite numbers
14
Mathematics
6th Grade
10/21/2015

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Cards

Term
Divisible
Definition
capable of being divided.
Term
Prime Number
Definition
a positive integer that is not divisible without remainder by any integer except itself and 1, with 1 often excluded:
The integers 2, 3, 5, and 7 are prime numbers.
Term
Composite Number
Definition
a number that is a multiple of at least two numbers other than itself and 1.
Term
Prime Factorization
Definition
the process of decomposing a number into its constituent prime numbers; the calculation of all prime factors in a number; also called [ prime decomposition ]
Term
Factor Tree
Definition
A special diagram where you find the factors of a number, then the factors of those numbers, etc until you can't factor any more.
Term
Common Factor
Definition
When you find the factors of two or more numbers, and then find some factors are the same ("common"), then they are the "common factors".
Term
Greatest Common Factor
Definition
The highest number that divides exactly into two or more numbers.
Term
Fraction
Definition
a number usually expressed in the form a/b.
Term
Equivalent Fraction
Definition
Fractions which have the same value, even though they may look different.
Term
Simplest Form
Definition
A fraction is in simplest form when the top and bottom cannot be any smaller (while still being whole numbers).
Term
Multiple
Definition
The result of multiplying a number by an integer (not by a fraction).
Term
Common Multiple
Definition
A common multiple is a number that results from the multiplication of two whole numbers larger than 1.
To find the common multiple of two numbers, first write the multiples of both the numbers and then choose all the common multiples.
Term
Least Common Multiple
Definition
The smallest positive number that is a multiple of two or more numbers.
Term
Least Common Denominator
Definition
The smallest number that can be used for all denominators of 2 or more fractions:

• the "Denominator" is the bottom number of a fraction.
• fractions have "Common Denominators" when their denominators are the same.
• the "Least Common Denominator" is the smallest number that can be used for all denominators of 2 or more fractions.
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