9 times 11 is 99. A prime is a number whose factors are one and itself.
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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.
99 is a composite number because it can be divisible by 1, 3, 9, 11, 33 and 99
Find the prime factors for 99. Any other prime number is not a prime factor. There are an infinite number of answers, since the set of prime numbers if infinite.
No 99 is a composite number it has 99, 1, 11, 9
The prime factors are 2 and 49999