100 Day Summer Challenge

100 problems in 100 days. #100problems

Day 31

31 of 100: Some Sum Riddle

Number Theory

I'm thinking of two positive whole numbers that multiply to 1000, neither of which contain the digit 0. What is the sum of these 2 numbers?

Check the factors! What's true about any of them that contain a digit 0?

View solutions
Jason Dyer by Brilliant Staff
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