prime numbers

prime numbers

1. the first 10 prime numbers are

   • 2,3,5,7,11,13,17,23,29

2. have exactly 2 factors.

   • it can only be divided by 1 and itself

3. 1 IS NOT A PRIME NUMBER

   • IT IS A FACTOR OR A MULTIPLE

4. you can use factor trees to find prime factors

   • chose a factor pair of the numbers
     • continue until both branches end with a prime number
       • then circle all the prime numbers
         • then write down all the circled prime numbers putting in multiplication signs
           • then multiple them