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9 times 11 is 99. A prime is a number whose factors are one and itself.

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8y ago

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15y ago

Because 99 = 3 × 3 × 11

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Q: Why isn't 99 a prime number?
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Related questions

A number that isnt a prime number?

Composite


What is a number called when it isnt a prime number?

Composite


Is 99 the greatest prime number within the number 1 and 100?

99 is not a prime number.


What is the prime number between 92 and 99?

The only prime number between 92 and 99 is 97.


Is 99 the greastest prime number between 1 and 100?

No, 99 is not a prime number. The largest prime number between 1 and 100 is 97.


Is the number 99 a prime number?

99 is not a prime number because it has more factors than 1 and itself. The factors of 99 are 1, 3, 9, 11, 33, and 99.


Is the number 99 prime?

No.


Why isnt 39 a prime number?

39 is not a prime number because it has four factors: 1,3,13,39 and because prime number are numbers who has 2 factors.


What prime number can you times together to get 99?

The prime factors of 99 are 3 * 3 * 11.


What prime number can you use to get 99?

You can use 97+2 = 99 or as a product of its prime factors: 3*3*11 = 99


What are the prime cubes of the number 99?

The prime factors of 99 are 3 and 11. Their cubes are 27 and 1331.


Can five over nineteen be reduced?

no, 5 isnt divisable by 19. 19 is a prime number and isnt divisable by anything.