About Divisibility Rules:
As we move forward in math it is extremely helpful to be able to determine if a number is divisible by the first few whole numbers. We will focus on rules that run from the number 2 up to and including the number 12. The often left out rules for 7 and 11 are included.
Test Objectives
- Demonstrate the ability to determine if a number is divisible by 2, 3, 4, 5, or 6
- Demonstrate the ability to determine if a number is divisible by 8, 9, 10, or 12
- Demonstrate the ability to determine if a number is divisible by 7 or 11
#1:
Instructions: Determine if each number is divisible by 2,3,4,5, or 6.
a) 58,738
b) 24,665
c) 79,200
Watch the Step by Step Video Solution View the Written Solution
#2:
Instructions: Determine if each number is divisible by 2,3,4,5, or 6.
a) 21,820
b) 39,702
c) 13,680
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#3:
Instructions: Determine if each number is divisible by 5,6,8,9, or 10.
a) 18,608
b) 28,926
c) 280,800
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#4:
Instructions: Determine if each number is divisible by 8,9,10, or 12.
a) 92,502
b) 47,736
c) 181,440
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#5:
Instructions: Determine if each number is divisible by 7 or 11.
a) 104,720
b) 334,180
c) 1,049,070
Watch the Step by Step Video Solution View the Written Solution
Written Solutions:
#1:
Solutions:
a) 58,738
- 2 - yes
- 3 - no
- 4 - no
- 5 - no
- 6 - no
b) 24,665
- 2 - no
- 3 - no
- 4 - no
- 5 - yes
- 6 - no
c) 79,200
- 2 - yes
- 3 - yes
- 4 - yes
- 5 - yes
- 6 - yes
Watch the Step by Step Video Solution
#2:
Solutions:
a) 21,820
- 2 - yes
- 3 - no
- 4 - yes
- 5 - yes
- 6 - no
b) 39,702
- 2 - yes
- 3 - yes
- 4 - no
- 5 - no
- 6 - yes
c) 13,680
- 2 - yes
- 3 - yes
- 4 - yes
- 5 - yes
- 6 - yes
Watch the Step by Step Video Solution
#3:
Solutions:
a) 18,608
- 5 - no
- 6 - no
- 8 - yes
- 9 - no
- 10 - no
b) 28,926
- 5 - no
- 6 - yes
- 8 - no
- 9 - yes
- 10 - no
c) 280,800
- 5 - yes
- 6 - yes
- 8 - yes
- 9 - yes
- 10 - yes
Watch the Step by Step Video Solution
#4:
Solutions:
a) 92,502
- 8 - no
- 9 - yes
- 10 - no
- 12 - no
b) 47,736
- 8 - yes
- 9 - yes
- 10 - no
- 12 - yes
c) 181,440
- 8 - yes
- 9 - yes
- 10 - yes
- 12 - yes
Watch the Step by Step Video Solution
#5:
Solutions:
a) 104,720
- 7 - yes
- 11 - yes
b) 334,180
- 7 - yes
- 11 - yes
c) 1,049,070
- 7 - no
- 11 - yes