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10/9/2013
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Section 5.1 Primes and Divisibility Rules
Section 5.1 Primes and Divisibility Rules
10/9/2013
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Section 5.1 Primes and Divisibility Rules
Divisibility Rules
A number is divisible by: if
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Section 5.1 Primes and Divisibility Rules
Divisibility Rules
A number is divisible by: if
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Section 5.1 Primes and Divisibility Rules
Divisibility Rules
A number is divisible by: if
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Section 5.1 Primes and Divisibility Rules
Divisibility Rules
A number is divisible by: if
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Section 5.1 Primes and Divisibility Rules
Section 5.1 Primes and Divisibility Rules
10/9/2013
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Section 5.1 Primes and Divisibility Rules
Can you write 71 as a product
of two smaller numbers?
Section 5.1 Primes and Divisibility Rules
Write the following numbers as products of smaller
numbers other than one.
12
21
36
108
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Section 5.1 Primes and Divisibility Rules
Prime Numbers
A natural number greater than 1 is a prime
number if it cannot be expressed as a
product of two smaller natural numbers.
A natural number that is not prime is called composite
Section 5.1 Primes and Divisibility Rules
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Section 5.1 Primes and Divisibility Rules
The Prime Factorization of Natural Numbers
Every natural number greater than 1 is either a
prime number or it can be expressed as a product
of prime numbers.
Section 5.1 Primes and Divisibility Rules
Find the prime factorization of 2450.
Find the prime factorization of 360.
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Section 5.1 Primes and Divisibility Rules
