This video explores one of Leonhard Euler’s most elegant ideas, showing how factorials can be used to connect π, square roots, and one-half in a surprising and beautiful way. Through clear ...

Two years ago, Factorial Energy opened its battery-making plant in Methuen to much fanfare, drawing Governor Maura Healey and Representative Lori Trahan to celebrate at the facility in an industrial ...

Factorial Energy, headquartered in Boston, specialises in solid-state batteries in which the liquid electrolyte is replaced by a solid one. The company counts Mercedes-Benz, Stellantis and Hyundai-Kia ...

Factorial Energy, a U.S.-based leader in solid-state battery technology, has announced its first shipment of FEST® lithium-metal battery cells for drone use. The recipient is Avidrone Aerospace, a ...

BOSTON--(BUSINESS WIRE)--Factorial Inc. (Factorial), an industry leader in solid-state battery technology, today announced the shipment of its first solid-state lithium-metal battery cells for drone ...

MENLO PARK, Calif., May 20, 2025 /PRNewswire/ -- The venture firm, Factorial Funds, has launched its second institutional fund with $200 million in committed capital. Hyundai Motor Company in ...

Can a small Massachusetts start-up perfect a battery that would make electric vehicles cheaper and more convenient than conventional cars? Can a small Massachusetts start-up perfect a battery that ...

Semi-solid-state battery cells engineered by Factorial Energy complete successful validation test with automaker Stellantis. Factorial's FEST (Factorial Electrolyte System Technology) battery cells ...

The technology validation builds on Stellantis’ $75 million investment in Factorial in 2021. Mercedes-Benz also joined Factorial at the time and began testing the technology in a modified EQS in ...