# Alexis Lemaire > mental calculator **Wikidata**: [Q333504](https://www.wikidata.org/wiki/Q333504) **Wikipedia**: [English](https://en.wikipedia.org/wiki/Alexis_Lemaire) **Source**: https://4ort.xyz/entity/alexis-lemaire ## Summary Alexis Lemaire is a French mental calculator and computer scientist known for his exceptional ability to perform high-speed mental calculations. He holds a doctorate from the University of Reims and is recognized for his public demonstrations of calculating the nth root of large numbers in record time. His most notable achievement includes computing the 13th root of a 200-digit number in under 70 seconds, setting a world record in the process. ## Biography - Born: 1980 - Nationality: France - Education: Doctorate in Computer Science from the University of Reims (2010) - Known for: Mental calculation feats, particularly rapid root extraction - Field(s): Computer Science, Mental Calculation ## Contributions Alexis Lemaire has made significant contributions to the field of mental calculation, particularly in demonstrating the speed and accuracy with which he can compute complex mathematical operations. His most famous feat includes calculating the 13th root of a 200-digit number in under 70 seconds, a performance that set a new world record. This achievement was widely publicized and established his reputation as one of the fastest mental calculators in the world. ## FAQs ### What is Alexis Lemaire known for? Alexis Lemaire is known for his extraordinary ability in mental calculation, particularly for setting a world record by computing the 13th root of a 200-digit number in under 70 seconds. He is also a computer scientist with a doctorate from the University of Reims. ### What are some of Alexis Lemaire's most notable achievements? Lemaire's most notable achievement is his record-breaking mental calculation of the 13th root of a 200-digit number, which he completed in under 70 seconds. This feat brought global attention to his mental calculation skills and earned him recognition as one of the world's fastest human calculators. ### Where did Alexis Lemaire study? Alexis Lemaire earned his doctorate in computer science from the University of Reims in 2010. His academic background supports his expertise in both computational theory and mental calculation. ### Has Alexis Lemaire published any academic work? While the source does not list specific publications, his academic contributions are tied to his public demonstrations and world records in mental calculation, which have been widely documented and recognized. ### What fields does Alexis Lemaire work in? Alexis Lemaire's primary fields include computer science and mental calculation. He is known for his academic and public work in both areas, particularly for his record-setting mental calculation performances. ## Why They Matter Alexis Lemaire's contributions to mental calculation have pushed the boundaries of what is humanly possible in computation without tools. His achievements in mental calculation have not only set world records but also inspired interest in the science of human cognitive performance. His work has influenced the study of mental agility and computation, drawing attention to the intersection of human cognition and mathematical performance. ## Notable For - Setting a world record by calculating the 13th root of a 200-digit number in under 70 seconds - Earning a doctorate in computer science from the University of Reims - Demonstrating that humans can perform complex calculations at extraordinary speeds - Being one of the most recognized mental calculators in the world ## Body ### Early Life and Education Alexis Lemaire was born in 1980 in France. He pursued higher education in computer science, earning a doctorate from the University of Reims in 2010. His doctoral advisor was Francis Rousseaux, and his research contributed to the academic understanding of computational theory and human cognitive capacity in mathematical computation. ### Career and Public Recognition Lemaire's career in mental calculation has been marked by public demonstrations of his ability to perform complex calculations at an inhumanly fast pace. His most famous performance involved calculating the 13th root of a 200-digit number in under 70 seconds, a feat that earned him global recognition. He has been described as one of the fastest human calculators in the world. ### Contributions to Mental Calculation Lemaire's contributions to mental calculation include: - Setting a world record by calculating the 13th root of a 200-digit number in under 70 seconds - Demonstrating the ability to perform complex mathematical operations in record time - Showcasing the potential of human mental computation through public exhibitions and academic research ### Legacy and Influence Alexis Lemaire's work has influenced the study of human cognitive abilities in mathematical computation. His achievements have inspired further research into the potential of the human mind in numerical computation. His work continues to be a reference point in discussions about mental agility and computational performance. ### Personal Life and Academic Work While Lemaire's personal life remains private, his academic work in computer science and mental calculation has been widely recognized. His doctorate from the University of Reims in 2010 was a significant milestone in his academic career, and his contributions to the field of mental calculation have been widely publicized. ### Awards and Recognition Lemaire has been recognized for his: - World record in mental calculation - Academic contributions to the field of computer science - Demonstrations of human cognitive potential in numerical computation These achievements have established him as one of the leading figures in the field of mental calculation and have inspired further research into the science of human computation. ## References 1. [Source](http://www.sudoc.fr/151611491) 2. [Source](https://www.theses.fr/2010REIMS020) 3. Virtual International Authority File 4. Freebase Data Dumps. 2013