Question 464748
<pre>
26*13<sup>8</sup>*17<sup>10</sup>

That's the correct way to start.

Now break the 26 into prime factors as 2*13

and replace the 26 by 2*13

2*13*13<sup>8</sup>*17<sup>10</sup>

and then since 13*13<sup>8</sup> = 13<sup>9</sup>, we end up with

2*13<sup>9</sup>*17<sup>10</sup>

Edwin</pre>