Melody

The only factors of a prime number are 1 and itself.  The smallest prime is 2.

4.26 * 10^0 + 2.3 * 10^-1

4.26+0.23 = 4.49

$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{sin}}{\left({\mathtt{42}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{50}}}{{\mathtt{60}}}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{30}}}{{\mathtt{3\,600}}}}\right)} = {\mathtt{0.679\: \!974\: \!707\: \!968}}$$

-12 is the answer

The distance from the Earth to the Sun in km.   :)

Even more in millimetres   LOL

Try this video

My goodness Geno - Where do you find the time to write all these great answers?   

Thank you so much  !

Yes 2 are functions.

FOR FUNCTIONS

every x can have at most one y

BUT

a y can have more than 1 x

Take a look at one or more of these.

It is often better to google questions like these.

Beats me, your question does not makes much sense.   :)