Practice Factors in Math
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
Whole numbers that divide evenly into a given number with no remainder—the 'building blocks' that multiply together to make it.
Factors are the 'building blocks' you multiply together to make a number.
Showing a random 20 of 50 problems.
Example 1
mediumHow many factor pairs does have?
Example 2
mediumHow many factors does have? Use its prime factorization.
Example 3
easyFind the factor pair of that includes .
Example 4
mediumList all factors of .
Example 5
mediumFind a number less than with exactly factors.
Example 6
challengeA number has exactly 3 factors. What kind of number must it be?
Example 7
hardHow many factors does have?
Example 8
easyHow many factors does have?
Example 9
easyList all factors of .
Example 10
mediumIf is a factor of 18 and also a factor of 27, list all possible .
Example 11
hardFind a number less than that has the most factors.
Example 12
easyIs a factor of ?
Example 13
mediumFind the common factors of and .
Example 14
hardA number has exactly factors. What can we say about its structure?
Example 15
mediumWhich of these is NOT a factor of : ?
Example 16
hardHow many factors of are perfect squares?
Example 17
easyIs a factor of ?
Example 18
mediumFind the sum of all factors of .
Example 19
easyList all factor pairs of .
Example 20
easyList all factor pairs of .