Answer:
A number that is divisible 9 is also divisible by 3 because 3 is a factor of 9.
Step-by-step explanation:
Solution:
Factors of 9 are {9,3,1}
Factors of 3 are {3,1}
Let us assume a number 18
Now 18 can also be written as 9[tex]\times[/tex]2
hence we can say that number 18 is divisible by 9
by 9 again can be written as 3[tex]\times[/tex]3
because 9 is divisible by 3
Now 18 can be rewritten as 3[tex]\times[/tex]3[tex]\times[/tex]2
hence we can say that number 18 is divisible by 3 also
So finally we can say that a number that is divisible 9 is also divisible by 3 because 3 is a factor of 9.
