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10 Cards in this Set
- Front
- Back
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divisibility
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division when the remainder is zero
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prime number
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a natural number greater than 1 whose only factors are 1 and itself
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composite number
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a natural number greater than 1 with factors other than 1 and itself
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unique number
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the only natural number that is neither prime nor composite. (ONE)
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prime factorization
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a method of writing a number as the product of primes
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methods of prime factorization
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-factor tree <-- don't use
-short division (successive division) |
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GCF
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the largest number that divides evenly into the given numbers.
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3 methods for GCF
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1. listing factors
2. algebraic method (prime factorization method) 3. shortcut |
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Steps to find GCF (algebraic or prime factorization method)
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1. prime factor each number
2. GCF = the product of common factors (bases) with the lowest exponent. |
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relatively prime
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2 or more expressions with a GCF of 1
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