Some of 'em numbers X85235

Statement

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Write a funcion multiply_some(n, a, b) that receives an integer n and two integers a,b such that n < a ≤ b, and returns the product of the integers in [a,b] that are multiples of n.

Sample session

>>> multiply_some(2, 5, 10)
480
>>> multiply_some(3, 10, 20)
3240
>>> multiply_some(5, 54, 57)
55
>>> multiply_some(8, 19, 23)
1

Information

Author: ProAl
Language: English
Official solutions: Python
User solutions: Python