Mega-Sena, concurso 2.797: ninguém acerta as seis dezenas e prêmio acumula em R$ 14,5 milhões – G1

Write a detailed and engaging article about Mega-Sena, concurso 2.797: ninguém acerta as seis dezenas e prêmio acumula em R$ 14,5 milhões  G1. The article should be structured with clear distinct paragraphs, each focusing on a specific aspect of the topic. Keep the tone human and conversational while ensuring the content is informative, well-organized, and easy to read. avoid adding a conclusion; focus purely on delivering structured, insightful information.