BRAIN TEASERS

enter your answer and press button OK

Calculate the number 8573

NUMBERMANIA: Calculate the number 8573 using numbers [8, 2, 1, 9, 96, 771] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 10

The first user who solved this task is Nílton Corrêa De Sousa.

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

Jon Dore: Ability to Hide

My grandfather avoided the Holocaust with his ability to hide, and by not being Jewish, and by living in Canada his entire life -- all about strategy.

Jokes of the day - Daily updated jokes. New jokes every day.

Follow Brain Teasers on social networks

Brain Teasers

puzzles, riddles, mathematical problems, mastermind, cinemania...

Recordak

In 1927, the Recordak, the first check photographing device began commercial manufacture by the Recordak Corporation, a newly-formed subsidiary of the Eastman Kodak Co., Rochester, NY. Designed to simplify bank records, the machine photographed checks onto 16mm film. It was invented by George Lewis McCarthy, who called it a Checkograph and was issued his patent on 25 Feb 1930 (No. 1,748,489). By 1935, it was also used in libraries for the purpose of making microfilm records, beginning with the New York Public Library photographing the New York Times of the WWI period. Microfilming itself began in the early 1800s. Microphotography for military purposes was first used in the Franco-Prussian war (1870 ).

This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.