Numbers 1:20-21 And the children of Reuben, Israel’s oldest son, by their generations, after their families, by the house of their fathers, according to the number of the names, by their polls, every male from twenty years old and upward, all that were able to go forth to war;

AKJV_Strongs⁽ⁱ⁾

20 H1121 And the children H7205 of Reuben, H3478 Israel’s H1060 oldest H8435 son, by their generations, H4940 after their families, H1004 by the house H1 of their fathers, H1538 according to the number of the names, by their polls, H3605 every H2145 male H8141 from twenty years H1121 old H4605 and upward, H3605 all H3318 that were able H3318 to go H3318 forth H6635 to war;

21 H6485 Those that were numbered H4294 of them, even of the tribe H7205 of Reuben, H705 were forty H8337 and six H505 thousand H2568 and five H3967 hundred.