Listing All the Factors of a Whole Number
Examples
Question:
List all the factors of $\,30\,$:
Answer:
$1\,,$
$\,30\,,$
$\,2\,,$
$\,15\,,$
$\,3\,,$
$\,10\,,$
$\,5\,,$
$\,6\,$
For the computer to recognize your answer as correct, you must list the factors in the order indicated in the example:
- The factors occur in pairs that multiply together to give $\,30\,.$
- $1\,$ goes into $\,30\,$ evenly, giving the pair $\,1\,,$ $\,30\,.$ You must write the smaller number first in each pair.
- $2\,$ goes into $\,30\,$ evenly, giving the pair $\,2\,,$ $\,15\,$
- $3\,$ goes into $\,30\,$ evenly, giving the pair $\,3\,,$ $\,10\,$
- $4\,$ doesn't go into $\,30\,$ evenly
- $5\,$ goes into $\,30\,$ evenly, giving the pair $\,5\,,$ $\,6\,$
- For this example, these are all the factors.
- The numbers must be separated by commas; spaces are optional.
Question:
List all the factors of $\,25\,$:
Answer:
$1\,,$ $\,25\,,$ $\,5\,$
Only list the factor $\,5\,$ once.
Only list the factor $\,5\,$ once.
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Master the ideas from this section by practicing below:
