100×

100× denotes a multiplicative factor of 100, with the symbol × read as “times” or “multiplied by.” When placed after a number, it indicates that the corresponding quantity has been scaled by a factor of one hundred.

Typical contexts include mathematics and data analysis, where 100× expresses a scale change or growth by a factor of 100. In microscopy and imaging, 100× is commonly used to describe magnification; the total magnification is the product of the magnifications of the objective and the eyepiece, so a 10× eyepiece paired with a 10× objective yields 100×, while a 100× objective with a 10× eyepiece yields 1000×. In finance, “100×” signals a return of one hundred times the invested amount, a benchmark often discussed as exceptionally high. In general reporting, 100× can describe any quantity increased by a factor of 100, such as growth, throughput, or signal amplification.

Notes: In laboratory contexts, “100×” may also denote a dilution or stock concentration prepared to yield a working concentration equal to the stock divided by 100. The precise meaning depends on the accompanying units and the specific field, so it should be read alongside other measurement information to determine the exact interpretation.