15 Is Not a Prime Number Because

question 13

Multiple Choice

15 is not a prime number because

• A)15 is not divisible by any number except 1 and itself.
• B)it has 1 as a factor.
• C)its factor pairs are 1 × 15, 3 × 5.
• D)its factor pairs are 3 × 5.

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Definitions:

Exponential Expression

A mathematical phrase where numbers or variables are raised to a power or exponent.

Associative Property

A mathematical rule stating that the way in which numbers are grouped in operations does not change their result.

Multiplication

A mathematical operation where a number is added to itself a certain number of times.

Decimal Places

The number of digits to the right of the decimal point in a number, determining its precision.