The argument isn't meaningless - it is exactly as stated: from just two elements of evidence you can show that the likelihood of both occuring by random chance is one in 10 million. In combination with all the other proof on the website, Christianity is shown to be an absolute certainty, which is of course the nature of the apocalypse.
Yeah well... There are others who will tell you, with proofs no better than what you've offered, that the number of the beast is 666, not 616. In fact most people who know anything about it would probably tell you it's 666. The KJ version is pretty clear about that: Rev 13:18. "Here is wisdom. Let him that hath understanding count the number of the beast: for it is the number of a man; and his number is Six hundred threescore and six." A score is 20, threescore is thus 60, so the number is 666. According to Asimov's guide, some old manuscripts of Revelation do have 616, but the weight of evidence is that the number is 666. You have to understand that right up to Medieval times it was common to use letters of the alphabet to also signify numbers. No doubt you've seen Roman numerals; the Greek and Hebrew languages assigned numerical values to every letter, not just the few the Romans used for numbers, so all words in Greek and Hebrew would have numerical value. Jewish mystics would naturally assume the words of scripture had numerical significance as well, and spend a lot of time trying to analyze such things.
Apart from that, Jesus' birth year is not known with certainty. It isn't even known with any certainty that he was actually a historical person, there's almost no Bible-independent documentation of his existence. There is I think one mention in the writings of Josephus, who was citing secondary sources. As far as I know, there's no mention of him in the Roman records of the period covering his life, ministry, and death, and the Romans were almost as fanatical about record-keeping as the Nazis were. Moreover, why would you connect the number of the beast specifically with verse 61:6 of the Koran? Why not verse 6:16 of the Koran, or verse 6:16 of any book of the Bible that has at least six chapters and the sixth chapter has a 16th verse? I'll tell you why: because those don't work for the pointless argument you're trying to make. You're engaging in selective thinking, picking facts that appear to suit your purposes and ignoring any that don't. If the number of the beast is indeed 616, then why would there be any particular significance to it written as 61:6 or 6:16 and used as in index into some other document? You're not making sense. You're going to have to produce verse 6:16 of the Koran and verses 6:16 of every book of the Old and New Testaments and explain how and why they do or do not bear upon your argument. Until you do that, I'm calling BS on you.
Give it up alasdair. You cannot prove the truth of Christianity, or any other religious belief system, it's a logical impossibility, as you'd know if you understood anything about the nature of evidence and how to think clearly.