Brit Bein HaBetarim

In Bereshit 15:8,9 we read about the Brit Bein HaBetarim, as follows:

וַיֹּאמַר: אֲדֹנָי יְהוִה, בַּמָּה אֵדַע כִּי אִירָשֶׁנָּה
וַיֹּאמֶר אֵלָיו, קְחָה לִי עֶגְלָה מְשֻׁלֶּשֶׁת, וְעֵז מְשֻׁלֶּשֶׁת, וְאַיִל מְשֻׁלָּשׁ; וְתֹר, וְגוֹזָל

And he said: 'O Lord GOD, whereby shall I know that I shall inherit it?' And He said unto him: 'Take Me a three-fold heifer, and a three-fold she-goat, and a three-fold ram, and a turtle-dove, and a young pigeon.'

The structure of the Korbanot is precisely as in the Chazaka we noted: the three-fold טצ"ץ war, the three-fold "war" of Moshiach ben Yosef, and for the three-fold "war" of Moshiach ben David. The turtle-dove is Moshiach ben David. The young pigeon is Moshiach ben Yosef.

The three three-fold "wars" together comprehensively answer the question "whereby shall I know that I shall inherit it." The Chazaka is the guarantee. It explains why the Korbanot had to be cut into three pieces, rather than two.

If this is so, איל משולש is the Torah Remez to the secret of 420-288-464. Interestingly, I once found a hint in the book איל משולש of the GR"A that seems to confirm this. Verily, as the GR"A said, every thing is hinted at in the Torah.