List of basic calculations Multiplication When written in the decimal system, all multiples of 5 will end in either 5 or 0. In the powers of 5, every power ends with the number five and from 5 3, if the exponent is odd, then the hundreds digit is 1 instead, if it is even, the hundreds digit is 6. In decimal notation, n 5 always ends in the same digit as n. The evolution of the modern Western digit for the numeral 5 cannot be traced back to the Indian system, as for the digits 1 to 4. The Kushana and Gupta empires in what is now India had among themselves several different forms that bear no resemblance to the modern digit. The Nagari and Punjabi took these digits and all came up with forms that were similar to a lowercase 'h' rotated 180°. The Ghubar Arabs transformed the digit in several different ways, producing from that were more similar to the digits 4 or 3 than to 5. It was from those digits that Europeans finally came up with the modern 5. While the shape of the character for the digit 5 has an ascender in most modern typefaces, in typefaces with text figures the glyph usually has a descender, as, for example, in. The number of appendages on most starfish, which exhibit pentamerism.The most destructive known hurricanes rate as Category 5 on the Saffir–Simpson hurricane wind scale.The most destructive known tornadoes rate an F-5 on the Fujita scale or EF-5 on the Enhanced Fujita scale.Messier object M5, a magnitude 7.0 globular cluster in the constellation Serpens.

The New General Catalogue object NGC 5, a magnitude 13 spiral galaxy in the constellation Andromeda.The Roman numeral V stands for dwarfs ( main sequence stars) in the Yerkes spectral classification scheme.

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