title: PHP wrong result with pow(11, 23)
body: <p>I have a problem with pow(11, 23). The PHP result is 895430243255237361008640.
  According to this german encrypt tutorial (page 5)
  <a href="http://www.dkruse.de/dokumente/netzwerke/Sicher3_Asymm_Verschluesselung.pdf" rel="nofollow noreferrer">http://www.dkruse.de/dokumente/netzwerke/Sicher3_Asymm_Verschluesselung.pdf</a>
  the result should be 895430243255237372246531.</p>
  <p>Also when I calculate 895430243255237372246531 % 187, the result is 126.
  It should be 88, according to the tutorial. I use PHP Version 7.3.11.</p>
  <p>I would be happy for any help</p>