BRAIN TEASERS

enter your answer and press button OK

Calculate the number 6153

NUMBERMANIA: Calculate the number 6153 using numbers [3, 1, 6, 7, 73, 627] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 20

The first user who solved this task is Manguexa Wagle.

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

What's the difference between ...

What's the difference between chopped beef and pea soup?
- You can chop beef, but you can't pea soup!

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 refracting telescope

In 1608, Johannes Lippershey (c.1570-c.1619) demonstrated a new invention, the first optical (refracting) telescope - prototype of the modern telescopes - to the Netherlands States General. Lippershey was a lens grinder who furnished spectables. An apprentice discovered that - by separating both a long-focus lens and a short-focus lens in front of the eye - distant objects appeared closer. Lippershey mounted lenses in tubes, applied for a patent in 1608, and also offered them for sale to the Dutch government, which appreciated their military value. When Galileo heard of the device, he made a similar arrangement and used it to study the heavens. It was named a "telescope" by a guest at an outdoor banquet 14 Apr 1611 honouring Galileo, where he demonstrated it to the assembly.«

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.