tre·de·cil·lion
| \ ˌtrē-di-ˈsil-yən
\
\
Definition of tredecillion
US
: a number equal to 1 followed by 42 zeros — see Table of Numbers
also, British
: a number equal to 1 followed by 78 zeros — see Table of Numbers
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“Tredecillion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tredecillion. Accessed 3 Mar. 2021.
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Time Traveler for tredecillion
The first known use of tredecillion was in 1850
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