number - Shnayim Ve'arba'im?

Who knows forty-two?

Please cite/link your sources, if possible. At some point in the next few days, I will:

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  Upvote all interesting answers.

  
  


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  Accept the best answer.

  
  


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  Go on to the next number.

  
  

Answer

42 travels (of B'nei Yisrael) in the Torah.

מ״ב מסעות בתורה רעמםם סוכות איתם כו׳ במדבר ל״ג

מם׳ סופרים פ״ב ה״ו