SOLUTION: If a is the smallest prime number greater than 21 and b is the largest prime number less than 16, then ab = A 299 B 323 C 330 D 345 E 351 How do you work this problem? Ca

Question 471261: If a is the smallest prime number greater than 21 and b is the
largest prime number less than 16, then ab =
A 299
B 323
C 330
D 345
E 351
How do you work this problem?
Can you please tell me how to work the problem and not just give me the answer?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

Note: Prime Numbers from 0 to 100

2, 3, 5, 7, 11, , 17, 19, , 29, 31, 37, 41, 43, 47, 53, 59, 

61, 67, 71, 73, 79, 83, 89, 97

a is smallest prime number greater than 21 and b is the

largest prime number less than 16, then ab 

 a * b = 23*13 = 299 

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