Paying off low interest high balance loan first or high interest low balance loan first?

I have the following 4 student loans & 1 mortgage.

1. total bal 25k 10 year @ 5.03%
2. total bal 25k 10 year @ 6.29%
3. total bal 75k 7 year @ 4.25%
4. total bal 75k 7 year @ 6.26%
5. total bal 550k 30 year @ 6.38%

If I have extra fund to make additional payment toward principal, is it always better to put more toward #5? Should I consider making additional payment toward #4 and #2 as well?

And another question is let's say #5 is out of the equation, should I make additional payment toward #4 over #2? Or should I prioritize by the interest rate as in #2, #4, #1, #3 in that order?

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