Answer:
79
Step-by-step explanation:
there are no other factors everything else can factor in 5 or 3
Option has no factors other than 1 and itself
A factor is a number that divides another number leaving no remainder. If we multiply two whole numbers it gives us a product, then the numbers we are multiplying are factors of the product because they are divisible by the product.
In the given question the factors are:
A. 55 =1, 55, 5, 11
B. 79= 1, 79
C. 99= 1, 99, 3, 6, 9, 11
D. 33= 1, 33, 3, 11
Thus 79 has no factors other than 1 and itself
So, the correct option is B
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