Prime & Composite Numbers
This lesson covers:
- The idea that numbers can be prime or composite
- Prime numbers are those whole only factors are 1 and the number itself
- Composite numbers are those that have other factors in addition to 1 and the number itself
- 1 is neither prime nor composite
What is a prime number?
A number whose only factors are 1 and itself
A number that has factors other than just 1 and itself.
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Is the number '3' a prime or composite number?
Prime
Composite
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What is a 'composite' number?
A number whose only factors are 1 and itself
A number that has factors other than just 1 and itself
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Is 12 a prime or composite number?
Composite
Prime
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Is 18 a prime or composite number?
Prime
Composite
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Is 7 a prime or composite number?
Composite
Prime
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Is 19 a prime or composite number?
Composite
Prime
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Is the number '1' a prime number, composite number, or neither?
Prime
Neither prime nor composite
Composite
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Is 27 a prime or composite number?
Prime
Composite
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Is 35 a prime or composite number?
Composite
Prime
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