Подчеркните простое число 15, 18, 24, 23, 21, 44, 57, 83, 17, 24, 45, 56, 18, 42, 59, 74,...

Question

Подчеркните простое число 15, 18, 24, 23, 21, 44, 57, 83, 17, 24, 45, 56, 18, 42, 59, 74, 20, 42, 35, 97

Answer 1

20..........................