Three Mean Primes     Find three different two-digit prime numbers such that the average of all three prime numbers is also prime and the average of any two of the prime numbers is also prime.
May 1, 2006
Past Problems
	E-mail Solutions to: pow@umassd.edu
	Correct Solutions
	Magdy Essafty. Alexandria, Egypt Aristides Kyriakakis.  Thessaloniki.  Greece Farid Lian. Uniatlantico, Barranquilla-Colombia Allamanis Miltiadis, Thessaloniki, Greece Brian Hetrick. UNH, Durham NH Diane Kristiansen. Westwood College, Dallas, TX Nikki Tan. Southridge School, Surrey, BC, Canada Amanda Tu.  Southridge School, Surrey, BC, Canada Sagar Patel.  Brookstone School, Columbus, GA Kushal Palkhiwala Joume Bautik.  St Arthur Prep, Elbonia Tony Gu. Northwest Junior High School. Coralville, IA Wenjin Fan. Coralville, IA Shaan Arora.  Brookstone School, Columbus, GA Andrew Sailor. Osceola Middle School, Ocala, FL Svadharma Keerthi.  South Pasadena Middle School, CA Iver Meng. South Pasadena Middle School, South Pasadena, CA Sarah Chen. Marie Curie Middle School, New York, NY Nancy Huynh. Everett, MA Wenlin Fan. Mountain Top, PA CJ Magbual. Saint Mary's School, Novaliches, Quezon City, Philippines Pat Costello. EKU, Richmond, KY Annelise Broussard: Creekwood Middle School, Kingwood, TX Adrian Atanasiu. Bucharest, Romania Michel Poulin. Collège Jean-Eudes, Montréal, Québec, Canada Eugene Roytman. New York, NY Anthony Pabillano. Flour Bluff High School, Corpus Christi, TX Kevin Temew. Davao Christian High School, Davao City, Philippines Kelly Temew. Davao Christian High School, Davao City, Philippines Kristy Chang. South Pasadena Middle School, South Pasadena, CA Roman Balas. Farmington Hills, MI Roland Vyncke. Bruges, Belgium Emil Lalov.Mathematical High School, Pleven, Bulgaria Lisa Schechner. Schreiber HS, Port Washington, NY Ben Gieske. Sauk Centre HS, Sauk Centre, MN Jerome Cherry. NAIT. Edmonton, Alberta, Canada Jason Wetherington. Brooksville, FL Daniel Senécal. Collège Jean-Eudes, Montréal, Québec, Canada Chris Maakal. Pretoria, South Africa Peter Moynahan. Rye Junior High, Rye, NH Hendrik Salomons.  Arapoti, Brazil Felicia Ratnaraj.  Webster Groves High School, St. louis, MO Slayton Gilmore.  Brookstone School, Columbus, GA Blake Hudson.  Brookstone School, Columbus, GA Sarah Chen. Marie Curie Middle School, New York, NY Nancy Huynh. Everett, MA Wenlin Fan. Mountain Top, PA CJ Magbual. Saint Mary's School, Novaliches, Quezon City, Philippines Pat Costello. EKU, Richmond, KY Annelise Broussard: Creekwood Middle School, Kingwood, TX Adrian Atanasiu. Bucharest, Romania Michel Poulin. Collège Jean-Eudes, Montréal, Québec, Canada Eugene Roytman. New York, NY Anthony Pabillano. Flour Bluff High School, Corpus Christi, TX Kevin Temew. Davao Christian High School, Davao City, Philippines Kelly Temew. Davao Christian High School, Davao City, Philippines Kristy Chang. South Pasadena Middle School, South Pasadena, CA Roman Balas. Farmington Hills, MI Roland Vyncke. Bruges, Belgium Emil Lalov.Mathematical High School, Pleven, Bulgaria Lisa Schechner. Schreiber HS, Port Washington, NY Ben Gieske. Sauk Centre HS, Sauk Centre, MN Jerome Cherry. NAIT. Edmonton, Alberta, Canada Jason Wetherington. Brooksville, FL Daniel Senécal. Collège Jean-Eudes, Montréal, Québec, Canada Chris Maakal. Pretoria, South Africa Peter Moynahan. Rye Junior High, Rye, NH Radu Ionescu. Montreal, Quebec, Canada Sarah Maldonado. Creekwood Middle School, Kingwood, TX Chad Birch.  Eastern Kentucky University, Richmond, KY Rakesh Geddam. India Phillip Ai.  Hammarskjold Middle School, East Brunswick, NJ Pratik.  Huntsville, AL Iman Pazirandeh. E.J. Sand Public School, Thornhill Ontario, Canada Brittany Cole.  Dartmouth High School, Dartmouth, MA Slayton Gilmore.  Brookstone School, Columbus, GA Max White, South Pasadena Middle School, South Pasadena, CA Don Miller.  Oregon City, Oregon Tiffany Chen.  South Pasadena Middle School, South Pasadena, CA Samuel Tweed.  Shelton, WA Brianna Loo. South Pasadena Middle School, South Pasadena CA Marius Damian. Braila, Romania Dan Dietz. Creekwood Middle School, Kingwood, TX Elizabeth.Creekwood Middle School. Kingwood, TX Ross Pacheco Hastings Middle School Fairhaven, MA Ken Tyburski. Chatham Hall Mathematics Faculty, Danville, VA Jennifer Sailor. Osceola Middle School, Ocala, FL Michelle Lam. South Pasadena Middle School, South Pasadena, CA Leong HoongHan. Bukit Mertajam, Penang, Malaysia Barrett Johannsen. Creekwood Middle School, Kingwood, TX Frank McGartland. Saskatoon, SK., Canada Aashrita Mangu. South Pasadena Middle School, South Pasadena, CA James McBean. Toronto, Canada Kyle Moon.  Forsyth Country Day School.  Winston-Salem, NC Lusha Zhou, Qingdao. Theja Lanka. Plano East Senior High, Plano, TX Janvi Wadiwala. Matthew Wong, South Pasadena middle school, South Pasadena, CA Rianna Jawa. Timber Grove Elementary, MD Erinn Grigsby. Fairview High School, Boulder, CO Adria Leduc.  Southridge School, Surrey, BC Danaly Veng. Collège Jean-Eudes, Montréal, Québec, Canada

 

 Last Updated On: 5/8/06