Nehemiah 7:15 Midrash

בְּנֵ֣י בִנּ֔וּי שֵׁ֥שׁ מֵא֖וֹת אַרְבָּעִ֥ים וּשְׁמֹנָֽה׃ (ס)

The children of Binnui, six hundred forty and eight.

Read midrashic interpretation of Nehemiah 7:15: and classical rabbinic exegesis.