Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.

Text: five-year performance comparison 2013 the following graph provides an indicator of cumulative total shareholder returns for the corporation as compared to the peer group index ( described above ) , the dow jones , and the s&p 500 . the graph assumes that the value of the investment in the common stock of union pacific corporation and each index was $ 100 on december 31 , 2002 , and that all dividends were reinvested . comparison of five-year cumulative return 2002 2003 2004 2005 2006 2007 upc s&p 500 peer group dj trans purchases of equity securities 2013 during 2007 , we repurchased 13266070 shares of our common stock at an average price of $ 115.66 . during the first nine months of 2007 , we repurchased 10639916 shares of our common stock at an average price per share of $ 112.68 . the following table presents common stock repurchases during each month for the fourth quarter of 2007 : period number of shares purchased average paid per total number of shares purchased as part of a publicly announced plan or program maximum number of shares that may yet be purchased under the plan or program . <table class='wikitable'><tr><td>1</td><td>period</td><td>totalnumber ofsharespurchased[a]</td><td>averagepricepaid pershare</td><td>total number of sharespurchased as part of apublicly announcedplan orprogram</td><td>maximum number ofshares that may yetbe purchased underthe plan orprogram[b]</td></tr><tr><td>2</td><td>oct . 1 through oct . 31</td><td>99782</td><td>$ 128.78</td><td>-</td><td>9774279</td></tr><tr><td>3</td><td>nov . 1 through nov . 30</td><td>540294</td><td>124.70</td><td>528000</td><td>9246279</td></tr><tr><td>4</td><td>dec . 1 through dec . 31</td><td>1986078</td><td>128.53</td><td>1869800</td><td>7376479</td></tr><tr><td>5</td><td>total</td><td>2626154</td><td>$ 127.75</td><td>2397800</td><td>n/a</td></tr></table> [a] total number of shares purchased during the quarter includes 228354 shares delivered or attested to upc by employees to pay stock option exercise prices , satisfy excess tax withholding obligations for stock option exercises or vesting of retention units , and pay withholding obligations for vesting of retention shares . [b] on january 30 , 2007 , our board of directors authorized us to repurchase up to 20 million shares of our common stock through december 31 , 2009 . we may make these repurchases on the open market or through other transactions . our management has sole discretion with respect to determining the timing and amount of these transactions. .
Question: what was the number of shares purchased in november of 2007?

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