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PRACTICE WITH FACTORS
Jump right to the exercises!
See the best ALGEBRA PINBALL time for this exercise
The concepts for this exercise are summarized below.
For a complete discussion, read the text.
In this discussion, number refers to a counting number: 1, 2, 3, and so on.
The factors of a number are the numbers that go into it evenly.
For example, the factors of 10 are 1, 2, 5, and 10.
The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.
Notice that factors occur in pairs:
1 × 42 = 42
2 × 21 = 42
3 × 14 = 42
6 × 7 = 42
Every number has a factor of 1 , because 1 goes into everything evenly.
Also, every number has itself as a factor.
EXAMPLES:
Is 6 a factor of 42?
Answer: YES (6 goes into 42 evenly)
Is 7 a factor of 30?
Answer: NO (7 does not go into 30 evenly)
Is 12 a factor of 3?
Answer: NO (12 does not go into 3 evenly)