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Level 23

Common Factors/Prime & Composite Numbers


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prime numbers
a whole number with exactly two factors, 1 and the number itself
composite numbers
a whole number that has more than two factors
common factor
a number that is a factor of two or more numbers
factor
A number that divides evenly into another number. 3 is a factor of 15 (look at the chart!)
multiples
numbers you say when you skip count. Multiples of 2 are: 2,4,6,8,...
odd number
is a number that can NOT be divided evenly into groups of two
even number
number that is divisible by 2.
Divisible
describes a number that can be divided into equal parts and has no remainder
prime factorization
Breaking down a composite number until all of the factors are prime