Ex-divs to take 6.4 points off FTSE 100 on June 2

LONDON, May 31 (Reuters) - The following FTSE 100 companies will goex-dividend on Thursday, after which investors will no longer qualify for thelatest dividend payout. According to Reuters calculations at current market prices, the resultingadjustment to prices by market-makers would take 6.4 points off the index. COMPANY (RIC) DIVIDEND MAX (pence) IMPACT ASSOCIATED BRITISH FOODS 10.30 0.13 MARKS & SPENCER 16.50 1.07 NATIONAL GRID 28.34 4.06 TAYLOR WIMPEY 9.20 1.17 Among FTSE 250 companies going ex-dividend are: COMPANY (RIC) DIVIDEND (pence) ALLIANCE TRUST 2.83 DEBENHAMS 1.02 DFS FURNITURE 3.50 GRAINGER 1.45 GREENCORE 2.55 GT PORTLAND ESTATES 5.60 LAIRD 8.60 MARSHALLS 6.75 SPIRE HEALTHCARE 2.40 SSP 2.50 SYNTHOMER 5.40 ZOOPLA 1.50 (Reporting by Sudip Kar-Gupta; Editing by Atul Prakash)