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| 1. |
Explain why the number 7×11×13+13 is composite |
| Answer» 7 × 11 × 13 + 13Take 13 common there we get\xa0= 13(7 x 11 +1 )= 13(77 + 1 )= 13(78)It is the product of two numbers and both numbers are more than 1. So, it is a composite number. | |