Why is 7x11x13+13 a composite number?

Asked by  | 4th Mar, 2008, 02:33: PM

Expert Answer:

Since  7x11x13+13  is 13( 7x11x11+1) , it can be written in multiple of 13 so it's a composite number

Answered by  | 5th Mar, 2008, 02:58: PM

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