String of Zeros (358)(447) (559) When the expression (358)(447) (559) is evaluated, the product ends with a string of zeros.  How many zeros will be at the end of this product?
February 14, 2005
Past Problems
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	Josh Rasera. Southridge School, Surrey, BC, Canada Nathan Gould. Scarsdale High School, Scarsdale, NY Frank McGartland. Saskatoon, SK., Canada Mitchell Donald. Southridge Senior School, Surrey, BC, Canada Nicole Lourenco. Dartmouth High School, Dartmouth, MA Pedro Fernandes. Dartmouth High School, Dartmouth, MA Doug Bedard. Dartmouth High School, Dartmouth, MA Henry Wilcox. Dartmouth High School, Dartmouth, MA Jerrold Greenberg. New York, NY James Endicott.  Good Counsel High School. Wheaton, MD Alireza Rezvani Faezifar. Tehran, Iran Kirill Korsak. Harper Park Middle School, Leesburg, VA Farhan Murshed. Troy High School, Troy, MI Teruo Goto. Aichi, Japan Law Wai Hon. Pui Ching Middle School, Hong Kong Francois Bonjean. Namur, Belgium Osama Rawy. Giza, Egypt Lutfi Latif. Walnut Creek, CA Roland Vyncke. Brugge, Belgium Nilesh M. Sardar Patel College of Engg, India Rahim Rezvani Faezifar. Tehran, Iran Mohammad El-Menaem. Assiut University, Assiut, Egypt Frank McGartland.  Saskatoon, SK., Canada Hamilton Hardison. University of Georgia. Athens, GA Rafael Zambrano. Barranquilla, Colombia. SA Abby Toor. Southridge School, Surrey, BC, Canada Justin Rowsell. St. John's, NL, Canada James Holt. Newfane High School, Newfane New York Bita Bayeste Parvin. Iran Mahmoud Bayeste. Iran Tim Poe. Austin, Texas Rohit Bollineni. Power Middle School, Farmington Hills, MI Brian Hetrick. Manchester, New Hampshire Jason Tripp. Westside High School, Macon, Georgia Luan Luu. CSU Long Beach, California Mohammad Dolatabady. Mashhad, Iran Juan Ortega Suarez. ITESM Campus Central de Veracruz, Veracruz, Mexico Phillip Ai. Warnsdorfer Elementary School, East Brunswick, NJ Evan Durant. Dartmouth High School, Dartmouth, MA Alan O'Donnell. Woking, UK David Shi. JLS Middle School, Palo Alto, CA Jamie Shi. Fairmeadow Elementary, Palo Alto, CA Monica Chu. JLS Middle School Palo Alto, CA Brian Wang. JLS Elementary School, Palo Alto, CA Kevin Xiong. Don Mills C.I. , Toronto, ON, Canada Regina Vanlow. Powell Middle School, Spring Hill, FL Bulent Yuzyil. Isil High School, Istanbul , Turkey Asheesh Saincher. Southridge School, BC, Canada Rodney Clingaman. Fishers, IN Gerald Stenklyft.  Bishop Kenny High School, Jacksonville, FL Bob Mitchell Normal, IL Crystal Koo. Steveston Secondary School, Richmond, BC., Canada Brian Goodwin. Department of Education and Training, Canberra, David Shi. JLS MIddle School, CA Nikki Steinhardt. Faith Lutheran College, Plainland, Queensland, Austrailia Rodney Clingaman.  Fishers, IN David Steele. SIAST, Saskatoon, SK, CA, Australia Farhana Dossa. Southridge School, Surrey, BC, Canada Tim Hudina. University of Ljubljana, Slovenia Radu Ionescu. Montreal, Quebec, Canada. Aquil Virani. Southridge Senior School, Surrey, BC, Canada Haley Lewandowski. Fern Hill Elementary School, West Chester, PA Anfei Li. Westside High School, Omaha, NE Moogra Those JLS Middle School, Palo Alto, CA Wanchai Longthanthong. Thonburiworatepeepararuk School, Thonburi, Bangkok Adithya Varadan, Shakerag Elementary, Duluth, GA Tyler Zou. Carmel High School, Carmel, IN James Melotek. Spanish River High School, Boca Raton, FL Noah Atwi. Episcopal School of Acadiana, Cade, LA
	37% of respondents successfully answered this problem.

 

 Last Updated On: 11/16/05