composite numbers

Asked by  | 26th Apr, 2008, 09:41: PM

Expert Answer:

  i)  7 x 11 x13 x + 13 = 13 x ( 7 x 11 + 1 )

  13 x 78 which is a composite number ( which has more than two factors )

  ii )  7 x 6 x 5 x 4 x 3 x 2 x 1 + 5 = 5 x ( 7 x 6 x 4 x 3 nx 2 x 1 + 1 ) = 5 x 1009 which is again a composite number 

Answered by  | 28th Apr, 2008, 12:10: AM

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