457x Online

: Some academic journals use these digits in their serial numbers. For example, the online version of the journal Food Science and Technology (Campinas) uses ISSN 1678-457X . 3. Finance and Markets

: An observer using a 16-inch telescope might "bump the mag up to 457x" to view fine planetary details or resolve tight double stars. : Some academic journals use these digits in

Calculating to reach that magnification. : Some academic journals use these digits in