Prime, Composite, and Rational Numbers

Explore prime and composite numbers and the set of rational numbers.

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QUESTION OF

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Views #: 115
Questions #: 10
Time: 15 minutes
Pass Score: 80.0%
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Mode

Defining a Prime Number

1 pts
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How many distinct factors does a prime number have?

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Classifying the Number 1

1 pts
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Which classification applies to the number 1?

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Identify the Prime Numbers

2 pts
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Select every prime number in the list below.

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Identify the Composite Numbers

2 pts
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Select every composite number in the list below.

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Sort the Numbers by Type

4 pts
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Numbers
×9
×2
×1
×23
Prime
Composite
Neither

Classify each number as Prime, Composite, or Neither

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Unique Prime Factorization

1 pts
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True or False: Every composite natural number can be expressed as a unique product of its prime factors.

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Complete the Definition

1 pts
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Missing

A natural number greater than 1 with exactly two different factors — itself and 1 — is called a ______ number.

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Definition of Rational Numbers

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Which set is defined as \(\{p/q : p, q \in \mathbb{Z}, q \neq 0\}\)?

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Recognize Rational Decimals

3 pts
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A decimal representation is rational if it terminates or repeats. Select every decimal below that represents a rational number.

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Order the Numbers

2 pts
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Please drag and drop the options to sort them

Arrange these numbers from smallest to largest: \(-3,\ 0,\ \tfrac{2}{3},\ 1,\ 5\).

2/3
5
1
0
-3
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Keywords
Year 7