Number Pattern of 7, 6, 2, 3 and 9

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7 x 9 = 63
77 x 99 = 7623
777 x 999 = 776223
7777 x 9999 = 77762223
77777 x 99999 = 7777622223
777777 x 999999 = 77777622223
7777777 x 9999999 = 77777762222223
77777777 x 99999999 = 7777777622222223
777777777 x 999999999 = 777777776222222223