[tex]N = {2}^{104} \times {3}^{102} + {2}^{100} \times {3}^{104} [/tex]
[tex]N = {2}^{100} \times {3}^{102} ( {2}^{4} + {3}^{2} )[/tex]
[tex]N = {2}^{100} \times {3}^{102} (16 + 9)[/tex]
[tex]N = {2}^{100} \times {3}^{102} \times 25 \: \: \vdots \: \: 5[/tex]
[tex] = > a) \: 5[/tex]