Mark 6:44 καὶ ἦσαν οἱ φαγόντες τοὺς ἄρτους πεντακισχίλιοι ἄνδρες.
Those who ate the loaves were five thousand men.
Adjective: Nominative Plural Masculine

Luke 9:14 ἦσαν γὰρ ὡσεὶ ἄνδρες πεντακισχίλιοι. εἶπεν δὲ πρὸς τοὺς μαθητὰς αὐτοῦ κατακλίνατε αὐτοὺς κλισίας ὡσεὶ ἀνὰ πεντήκοντα.
For they were about five thousand men. He said to his disciples, "Make them sit down in groups of about fifty each."
Adjective: Nominative Plural Masculine

John 6:10 εἶπεν ὁ Ἰησοῦς ποιήσατε τοὺς ἀνθρώπους ἀναπεσεῖν. ἦν δὲ χόρτος πολὺς ἐν τῷ τόπῳ. ἀνέπεσαν οὖν οἱ ἄνδρες τὸν ἀριθμὸν ὡς πεντακισχίλιοι.
Jesus said, "Have the people sit down." Now there was much grass in that place. So the men sat down, in number about five thousand.
Adjective: Nominative Plural Masculine