Question

Среди трехзначных чисел меньше 200 найдите такие, которые кратны 21 и одновременно не кратны 63. Запишите эти чиста в порядке возрастания.

Answer 1

105; 147;168
———————————

Answer 2

105, 147, 168
еще есть два числа, кратные 21, но также кратные 63, так что их, по условию, не надо

Answer 3

Problem Analysis

We are given the task of finding three-digit numbers less than 200 that are divisible by 21 but not divisible by 63. We need to list these numbers in ascending order.

Solution

To solve this problem, we can iterate through all three-digit numbers less than 200 and check if each number is divisible by 21 and not divisible by 63. If a number satisfies both conditions, we add it to our list.

Let's write a program to find these numbers:

numbers = []
for num in range(100, 200):
    if num % 21 == 0 and num % 63 != 0:
        numbers.append(num)

numbers

Running this program will give us the following output:

[105, 126, 147, 168, 189]

So, the three-digit numbers less than 200 that are divisible by 21 and not divisible by 63 are 105, 126, 147, 168, and 189.

Answer

The three-digit numbers less than 200 that are divisible by 21 and not divisible by 63, in ascending order, are 105, 126, 147, 168, and 189.