Exa-

From Wikipedia, the free encyclopedia

Exa (símbol E) és un prefix del Sistema Internacional que indica un factor de 10¹⁸, o 1.000.000.000.000.000.000.

Adoptat el 1991, prové del grec ἕξ, héx, que significa sis, ja que és igual a 1000⁶.

Per exemple;

1 exàmetre = 1 Em = 10¹⁸ metres

1 exagram = 1 Eg = 10¹⁸ grams

1 exasegon = 1 Es = 10¹⁸ segons

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