Asosiy kontentga oʻtish
← Arxivga qaytish

Masala №55 · 20-sentabr, 2026

Tub sonlar

2020 dan kichik tub sonlar nechta?
  1. A66
  2. B77
  3. C99
  4. D88

ISHLANGAN NAMUNA

Yechim

2020 dan kichik tub sonlar: 2,3,5,7,11,13,17,192, 3, 5, 7, 11, 13, 17, 19 — jami 88 ta. 11 tub son emas, 22 esa yagona juft tub son.
Bugungi masalani yechish
Kunlik masala №55 — 20-sentabr, 2026 — Prime Matematika