1. Do Now Write as an exponent 3 x 3 x 3 x 3 4 x 4 x 4 x 4 x 4 5 x 5 x 5 What is a factor? Define in your own words.

2. Vocabulary Prime number- Has exactly two factors, 1 and itself Composite number - Can be written as a product of two or more numbers

3. Examples Prime numbers : 2, 3, 5, 7, 11 Composite numbers: 4, 12, 9, 6

4. Some tricks Every even number can be divided by two Any number ending in a 0 or a 5 can be divided by 5 If the sum of a numbers digits is a multiple of 3, then it is divisible by 3. 78, 126, 90

5. Prime Factorization When you express a number as the product of prime numbers. 243027

6. You try 130 4278125