Q43 of 128 Page 25

l.c.m.. (136, 221, 391) = ………

136 = 2 × 2 × 2 × 17


221 = 13 × 17


391 = 17 × 23


So, l.c.m.. (136, 221, 391) = 2 × 2 × 2 × 23 × 13 × 17 = 40664

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g. c. d (136, 221, 391) = …….

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If g. c. d (a, b) = 8, l.c.m.. (a, b) = 64 and a > b then a = ……..

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