Exhibit 11.1 Motorola, Inc. and Consolidated Subsidiaries Primary and Fully Diluted Earnings Per Common and Common Equivalent Share Nine Months Ended September 27, 1997 and September 28, 1996 (In millions, except per share amounts) Nine Months Ended Sept. 27, Sept. 28, 1997 1996 Net Income $ 859 $ 916 Add: Interest on Zero coupon notes due 2009 and 2013, net of tax and effect of executive incentive and employee profit sharing plans 4 3 Adjusted net income $ 863 $ 919 Earnings per common and common equivalent share - Primary: Weighted average common shares outstanding 595.0 592.2 Common equivalent shares: Stock options 12.0 10.2 Zero coupon notes due 2009 and 2013 6.3 6.6 Common and common equivalent shares - primary (in millions) 613.3 609.0 Net earnings per share - primary $ 1.41 $ 1.51 Earnings per common and common equivalent share - Fully Diluted: Weighted average common shares outstanding 595.0 592.2 Common equivalent shares: Stock options 12.3 10.3 Zero coupon notes due 2009 and 2013 6.3 6.6 Common and common equivalent shares - fully diluted (in millions) 613.6 609.1 Net earnings per share - fully diluted $ 1.41 $ 1.51