Mersenne Prime Number

[Marcel]

Hi!
In 1903, Frank Nelson Cole factorise this number:
147 573 952 589 676 412 927 = 193 707 721 x 761 838 257 287


On the Prime, divis() and factor() give no factorisation;
On Ti-Nspire, factor() give a good response.

I know the Prime can do it.

My question:

If the two functions of the Prime is limit in size of the number in ( ), why just say it because the response is not the good one.

Marcel