際際滷

際際滷Share a Scribd company logo
Prime Factor
 A prime number is a number greater than 1 with only two
factors  themselves and 1.
 A prime number cannot be divided by any other numbers
without leaving a remainder
 An example of a prime number is 13.
 Prime factors are factors of a number that are, themselves,
prime numbers.
 There are many methods to find the prime
factors of a number, but one of the most
common is to use a prime factor tree.
For example 60
You do what two numbers times to give 60 and
2 and 30 - you will circle the 2 because it is a prime number then
you find 2 numbers timed. Together that give 30. 6 and 5 you will
circle 5 then you find 2 numbers that give 6 lke 3 and 2 then you
circle them both
 1 can only be divided by one number, 1 itself, so with this
definition 1 is not a prime number
 It is important to remember that mathematical definitions
develop and evolve
 Throughout history, many mathematicians considered 1 to be a
prime number although that is not now a commonly held view.
Prime factor
Prime factor
Prime factor
Prime factor
Prime factor

More Related Content

Prime factor

  • 2. A prime number is a number greater than 1 with only two factors themselves and 1. A prime number cannot be divided by any other numbers without leaving a remainder An example of a prime number is 13.
  • 3. Prime factors are factors of a number that are, themselves, prime numbers. There are many methods to find the prime factors of a number, but one of the most common is to use a prime factor tree. For example 60 You do what two numbers times to give 60 and 2 and 30 - you will circle the 2 because it is a prime number then you find 2 numbers timed. Together that give 30. 6 and 5 you will circle 5 then you find 2 numbers that give 6 lke 3 and 2 then you circle them both
  • 4. 1 can only be divided by one number, 1 itself, so with this definition 1 is not a prime number It is important to remember that mathematical definitions develop and evolve Throughout history, many mathematicians considered 1 to be a prime number although that is not now a commonly held view.