# Excel, 10 bytes, score <strike>(145!)-(144!)</strike> 0 [Cracked!](https://codegolf.stackexchange.com/a/242152/103471) I'm interested to see how this can be cracked. <pre><code class="lang-bash">=FACT(145)</code></pre> Outputs 8.04792605747199E+251 (actually prints every digit when in "Number" format and a very wide column/merged columns, the most I could get it to print before they became ##### or #NUM! <pre><code class="lang-bash">=FACT(144)</code></pre> Outputs 5.55029383273931E+249 (again, actually prints every digit [although it does turn most to 0's]) But... if you think it's okay if I can use un-printable numbers (likely not) # Excel, 10 bytes, score (999999999!)-(999999998!) =FACT(999999999) Output is approximately 1e8448735636 =FACT(999999998) Output is approximately (1e8448735636)/999999999