Answer:
Index Finders
Explanation:
* The search engine keeps the data in an index that is known as index finders which consist of the information almost all query and searching keyword.
* when we search for any website in Google, Yahoo or Bing, it searches from the keyword in the index finder and provides the correct matches.
* Index finders make the searching process too easy otherwise it is too difficult to search for different queries too fast from different pages.
A transcript must have a signature or school stamp.
Answer:
The program written in Python is as follows:
<em>See Explanation section for line by line explanation</em>
for n in range(100,1000):
isum = 0
for d in range(1,n):
if n%d == 0:
isum += d
if isum == n * 2:
print(n)
Explanation:
The program only considers 3 digit numbers. hence the range of n is from 100 to 999
for n in range(100,1000):
This line initializes sum to 0
isum = 0
This line is an iteration that stands as the divisor
for d in range(1,n):
This line checks if a number, d can evenly divide n
if n%d == 0:
If yes, the sum is updated
isum += d
This line checks if the current number n is a double-perfect number
if isum == n * 2:
If yes, n is printed
print(n)
<em>When the program is run, the displayed output is 120 and 672</em>
