# Study Guide - Factors, Multiples, Number Puzzles

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1. Composite Number
A whole number that has more than two factors
2. Prime Number
A number that is only divisible by itself and 1
3. Square Number
Any # of tiles that can make a square
4. Factor
One of the numbers that are being multiplied to equal a product
5. Multiple
The numbers you say when skip counting by a certain number
6. How do you know if a number is divisible by 2?
If it is an EVEN number
7. How do you know if a number is divisible by 5?
The number has to end with a 0 or a 5.
8. How do you know if a number is divisible by 10?
The number has to end in a zero.
9. How do you know if a number is divisible by 3?
The sum of its digits is divisible by 3.

• 123
• 1 + 2 + 3 = 6
• 6 is divisible by 3.
10. How do you know if a number is divisible by 6?
If the number is divisible by 2 AND by 3!

• 126
• 126 is an even number (is divisible by 2)
• 1 + 2 + 6 = 9 (is divisible by 3)
 Author: android ID: 42253 Card Set: Study Guide - Factors, Multiples, Number Puzzles Updated: 2010-10-14 23:54:44 Tags: 5th grade math Folders: Description: Define terms Show Answers: