pile of cn tags on the article. 

An editor added a pile of cn tags to the article. As far as I've noticed, the facts tagged are well-known and can be supported by references in time. Some of the facts should indeed have attribution, such as "According to Khalifa," and I have the books buried somewhere in this apartment. Let's look at the current tagged text, I'll start a subsection for each.   
using computers in 1968
Starting in 1968, Khalifa used computers to analyze the frequency of letters and words in the Qur'an.
1974 claim of numerical pattern
In 1974 he claimed that he discovered an intricate numerical pattern in the text of the Qur'an involving the number 19 mentioned in verse 30 of chapter 74 of the Qur'an.
This may be inaccurate, his original work on numeric pattern did not connect pattern to 30:74, but I'll check. What we may be seeing here is later synthesis.   
Details of claim
The details of this analysis including tables are available in the back of his book, Quran, the Final Testament.[2]
This was not tagged, but needs attention anyway
The details shifted over the years, and what was published in the Final Testament is quite different from the earlier publications. So it is not "this analysis," i.e., the 1974 analysis.   
Many popular magazines and newspapers
Many popular magazines and newspapers[which?] in the Muslim world reported his discoveries.
This doesn't need two tags. I'll pull the first.  
Other magazine and newspaper articles
Many other magazines and newspaper articles by and about Khalifa appeared throughout the world in many languages.
This is redundant, I'll yank it.   
Many Muslim organizations
Various Muslim organisations however have criticised Dr. Rashad's studies,[citation needed] accusing him of spreading heresy and ignorance through his proclamation of himself as a prophet
Doesn't need two tags, and it's WP:WEASEL. Definitely, we need specifics. I'll yank one tag.