BRAIN TEASERS

enter your answer and press button OK

Calculate the number 4575

NUMBERMANIA: Calculate the number 4575 using numbers [4, 7, 3, 3, 83, 955] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 33

The first user who solved this task is Llewellyn Samuels.

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

Here's Your Phone

After a recent college basketball game, the coach spotted a cell phone lying on the floor. He picked it up and handed it to one of the referees, saying, "Here's your phone."
"What makes you think its mine?" the ref asked.
"Easy," the coach replied. "It says you missed 13 calls!"

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...

First fully-functional programmable computer

In 1941, Konrad Zuse completed the world's firstfully-functional programmable computer (Turing-complete computer), his Z3 machine. It was also the first such computer to utilize the binary system rather than decimal system. It was an electromechanical digital computer built with 2,400 relays. The programs were input from punched rolls of discard movie film. Notably, the Z3 was programmable, whereas the independently developed Atanasoff binary ABC (1942) and ENIAC (1945-46) were special-purpose calculators, neither of which were freely programmable. The Z3 was used by the German aircraft industry to solve systems of simultaneous equations and mathematical aspects of the vibration of airframes under stress. It was destroyed in 1944 during WW II bombing raids.«

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.