Calculate product...
[1731] Calculate product... - Calculate product of four consecutive prime numbers with the sum of 220. - #brainteasers #math - Correct Answers: 53 - The first user who solved this task is Sanja Šabović
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Calculate product...

Calculate product of four consecutive prime numbers with the sum of 220.
Correct answers: 53
The first user who solved this task is Sanja Šabović.
#brainteasers #math
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Heard in the Friars Barber Shop

A man walks into the Friars barbershop, sits down in the chair and the barber asks, “How do you want your haircut?”
The man says, ” I would like the sideburns one high and one low, a few long hairs sticking out of the back and a few chunks on the side and top.”
The barber looks puzzled and says, “I’m not sure I can do that.”
The customer says, “Why not, you did it that way last time.”

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Tycho's Supernova

In 1572, Danish astronomer Tycho Brahe began his meticulous observations of the supernova discovered in the W-shaped constellation of Cassiopeia. (Brahe was at the beginning of his career in 1572, and it was this supernova that inspired him to devote his lifetime to making accurate measurements of the positions of the stars and planets.) For two weeks it was brighter than any other star in the sky and visible in daytime. By month's end, it began to fade but it remained visible to the naked eye for about 16 months until Mar 1574. Thus 16th-century astronomers learned that the heavens were not immutable, as had been believed. Brahe's book on his observations, De Nova Stella, originated the word “nova.”«
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