Numbers Riddle

In the post before this one, I posted a homework word problem.  This time, I am going to post a math "riddle" that my son did for extra credit.

I didn't work out the math.  But he told me the answer.

And I hope it's the right one or...awkward. 

Go ahead, I'll wait while you try it.  

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My tens digit is the 26^th prime minus 96,

But if you’re incapable of that,

It’s also the 3^rd square minus the 2^nd square,

Says my epic CAT…. Brand calculator.

My thousands digit when multiplied with my units,

Should equal an odd number,

Now subtract [400-(10-(300x3-895)-5+5),

And you’ll get it you humbler!!

My ten thousands digit is really quite simple,

So let me give you a break,

Take the 3^rd prime and square it, and minus twenty,

And you’ll get the digit, break’s a plenty!

Figuring out the one’s place,

Shall be no fun at all,

Sum the first 3 squares, add one, subtract 16, and add 7! (Including 0)

That’ll give you the answer quick!!

Last but not least, my hundreds digit,

Not an easy one,

Take (400- the first 3 primes-386),

And you’ve got it done!!