A metric prefix is a numerical multiplier that is placed before a basic unit of measure to indicate a specified multiple or fraction of that unit. They range from the smallest, 'yocto' (1 ...

Yotta (24 zeroes) was the largest prefix in the metric system before the new additions. Now, the Earth's mass can be said to be about 6 ronnagrams rather than 6,000 yottagrams.

But the new prefixes, including "ronna" and "quetta," could also be used in other measurements. (The Earth weighs about 1 ronnagram, according to the most recent issue of the journal Nature .) ...

Scientists have approved the introduction of four new prefixes that can be applied to units of measurement in the metric system. When you purchase through links on our site, we may earn an ...

NEW LARGEST AND SMALLEST STANDARD UNITS OF MEASUREMENT. The prefixes make it easier to express large amounts – for example, always referring to a kilometre as 1,000 metres or a millimetre as one ...