David W. answered • 03/04/16
Tutor
4.7
(90)
Experienced Prof
What is the product of the smallest prime number that is greater than 50 and greatest prime number that is less than 50?
53 * 47
53 * 47 = 2491
p.s., Oh, an algorithm: Start with 51; is it prime? No, it is 17*3. Is 52 prime? No, it is 2*2*13. Is 53 prime? yes.
Do the same starting with 49 going down. Multiply the results. [Eratosthenes would be proud of you.]
