Buchanan
There are many reasons to learn how to divide Buchanan into syllables. Separating a word like Buchanan into syllables is mainly to make it easier to read and pronounce. The syllable is the smallest sound unit in a word, and the separation of the Buchanan into syllables allows speakers to better segment and emphasize each sound unit.
Knowing how to separate Buchanan into syllables can be especially useful for those learning to read and write, because it helps them understand and pronounce Buchanan more accurately. Furthermore, separating Buchanan into syllables can also be useful in teaching grammar and spelling, as it allows students to more easily understand and apply the rules of accentuation and syllable division.
In the case of the word Buchanan, we find that when separating into syllables the resulting number of syllables is 1. With this in mind, it's much easier to learn how to pronounce Buchanan, as we can focus on perfecting the syllabic pronunciation before trying to pronounce Buchanan in full or within a sentence. Likewise, this breakdown of Buchanan into syllables makes it easier for us to remember how to write it.