Question 1209939
<pre>
Tutor Ikleyn states<font color="blue"><b>

29 is a prime number, so it has two possible decompositions in the product of
prime numbers 

        29 = 1* 29   or  29 = (-1)*(-29).</font></b>

But unless we are in modern algebra where there are such things as "groups",
"rings", etc., and where "prime number" has a different definition, then "prime
number" always means a positive integer with exactly 2 unique positive integer
factors.

While 29 = (-1)*(-29) is true, it is not a decomposition in the product of prime
numbers.

Edwin</pre>