Предмет: Математика, автор: bogdanov0987

Назовите восемь последних цифр в произведении:

1⋅2⋅3⋅ … ⋅38⋅39.

Выберите вариант ответа:

10000000
50000000
00000000
20000000
40000000

Ответы

Автор ответа: Олеся9006

Произведение чисел от 1 до 39 заканчивается восемью нулями. (Ноль получается при произведении 2*5. Двоек очень много. Пятерки есть в разложении 5*1, 5*2, 5*3, 5*4, 5*5, 5*6,5*7, итого-8) Поэтому ответ 3.

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