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Who knows three hundred seventeen?

?שבעה עשר ושלוש מאות - מי יודע

In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 317.

Check out for the previous three hundred sixteen entries in this ongoing series.

Please include sources for your information wherever possible, as with all other answers on this site.

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    יאוש = 317 so I give up – Gershon Gold May 28 '13 at 18:10
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317- the number of times in the Talmud Bavli where the answer to a question is unknown and "תיקו"
--understood to mean the question shall remain unresolved-- (lit: "let it stand") is invoked.

  • See this sefer by R' Aaron Pessin where he lists and discusses each of these 317 cases.
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+50

The average lifespan of the ten men in the line of descent from (and including) Sheim to Avraham Avinu was a little more than 317 years:

Sheim - 600
Arpachshad - 438
Shelach - 433
Eiver - 464
Peleg - 239
Re'u - 239
Serug - 230
Nachor - 148
Terach - 205
Avraham - 175

(See Bereishit 11:10 - 32 and Bereishit 25:7. Statistic first observed by Dr. Gabriel Cousens in Spiritual Nutrition, p.248.)

4

Per Wikpedia the length of the northern wall of the Har HaBayis is 317 meters:

ארכו של הכותל הצפוני כ-317 מטר

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