Question
The positive number X is divisible by 42, and is composed of only 1s and 0s when written in base 10. What's the smallest number that X might be?
Answers
Steve
clearly, x must be a multiple of 5*42 = 210
I get 101010 = 42*2405 = 210*481
I get 101010 = 42*2405 = 210*481