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| 1. |
Explain whether 3×12×101+4 is a prime or composite number (2 marks) |
| Answer» {tex}\\begin{array}{l}=3\\times12\\times101+4\\\\=4(3\\times3\\times101+1)\\\\=4(909+1)\\\\=4\\times910=2^3\\times5\\times7\\times13\\\\\\\\\\\\\\end{array}{/tex}= a composite number[{tex}\\because{/tex}\xa0Product of more than two prime factors] | |