Nitro, Nitroso, Nitrate, and Nitrite Compounds, Organic. Reactive groups are categories of chemicals that typically react in similar ways because they are similar in their chemical structure. Each substance with a chemical datasheet has been assigned to one or more reactive groups, and CAMEO Chemicals uses the reactive group assignments to make its reactivity predictions.
The largest  number that has a commonly-known specific name is a googolplex,  which is a 1 followed by a googol zeros, where googol is 10100 (a 1  followed by 100 zeros).
Euclid proved centuries ago that there is an infinite number of primes, but no oneâs ever found a formula to find them, so the process of seeking them out in numbers so large is a tedious one. So tedious that itâs taken four years to beat the previous largest-known prime. The previous largest-known prime was 243,112,609 â 1, which when written out is a little under 13 million digits long, but 257,885,161 â 1 just crushed it, coming in at 17 million digits long.