HP50g or other: U. of Houston calc exams

[Peter Murphy]

Hello JL,

I have also found that Forum members can solve these problems much more cleanly than I can, so that although I learn a lot solving them myself there is still more to learn. Ask questions.

What can Forum participants make of this problem, from 2014?

9. Give the sum of the prime factors (including repetition) for 224551579230.

After FACTOR, the solution seems clumsy but straightforward until you get to repetition, at which point I'm at a loss.

Peter