Genesis 5:26
24 Enoch walked with God, and then he disappeared because God took him away. 25 When Methuselah had lived 187 years, he became the father of Lamech. 26 Methuselah lived 782 years after he became the father of Lamech, and he had other sons and daughters. 27 The entire lifetime of Methuselah was 969 years, and then he died. 28 When Lamech had lived 182 years, he had a son.
LXX Genesis 5:26
24 And Henoch was well pleasing to God, and he was not found, because God transferred him. 25 And Mathousala lived one hundred sixty- seven years and became the father of Lamech. 26 And Mathousala lived after he became the father of Lamech eight hundred two years and had sons and daughters. 27 And all the days of Mathousala, which he lived, amounted to nine hundred sixty- nine years, and he died. 28 And Lamech lived one hundred eighty-eight years and became the father of a son
Notes and References
"... The genealogy in LXX-G makes the same points as its MT counterpart, but its details are quite different. Whereas the time from creation to the flood covered 1,656 years in the Masoretic text, it covers 2,242 years in LXX-G. The same period between creation and flood in the Samaritan Pentateuch is only 1,307 years (Wevers 1993, 68). The first point at which LXX-G differs from the Masoretic is Adam’s age when he fathered Seth: MT reports that he was 130 years old; LXX-G reports that he was 230 years old. Although neither MT nor LXX-G has an explicit direct object for the verb ‘father’, it is obvious that it is Seth whom Adam fathered in his ‘form’ and image. Here LXX-G departs from the earlier ‘likeness’ (1:26) that, along with ‘image’, characterized the similarity between God and humans. In so doing, it also differs from the MT that repeats the two features of 1:26 here. The word, as Wevers maintains, “was clearly chosen to indicate that the generation took place in accordance with the ‘outward appearance’ or ‘form’ of Adam” (1993, 69). LXX-G again differs from the MT in the amount of time that Adam lived after fathering Seth. LXX-G reports that he lived 700 more years, while MT reports that he lived 800 additional years. Both, however, agree that Adam lived a total of 930 years before he died ..."
Brayford, Susan Septuagint Commentary Series: Genesis (p. 258) Brill, 2007