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# Divisibility and Factors - PowerPoint PPT Presentation

Divisibility and Factors. 4.1. Divisibility Rules of 2 and 4. A number is divisible by 2 if the last digit if divisible by 2 A number is divisible by 4 if the last two digits are divisible by 4. Divisibility Rules of 3 and 9.

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## PowerPoint Slideshow about 'Divisibility and Factors' - aline-chapman

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### Divisibility and Factors

4.1

• A number is divisible by 2 if the last digit if divisible by 2

• A number is divisible by 4 if the last two digits are divisible by 4

• A number is divisible by 3 is the sum of the digits are divisible by 3

• A number is divisible by 9 if the sum of a the digits are divisible by 9

• If a number ends in a 5 or 0 its divisible by 5

• If a number ends in a 0 its divisible by 10

• If it ends in an even number and if the sum of the digits is divisible by 3.

1.) Is 160 divisible by 5

2.) is 56 divisible by 10

3.) is 53 divisible by 2

4.) is 1118 divisible by 2

5.) is 64 divisible by 9

6.) is 472 divisible by 3

7.) Is 174 divisible by 3

8.)Is 43, 542 divisible by 9

• A number that will divide with out a remainder into another

• 10

• 21

• 24

• 31

What are possible arrangements if there are 36 students singing at a concert. There must be at least 5 students in each row and the same number of students in each row.

Homework singing at a concert. There must be at least 5 students in each row and the same number of students in each row.

TB Pg 174 (2-52) even