MathCastle
Grade 4SuperchallengeFactors and Multiples

Factors and Multiples · Superchallenge problem

A composite number is a whole number with more than 22 factors. What is the largest number of composite numbers in a row that you can find among the whole numbers from 11 to 100100? (For example, 24,25,26,27,2824, 25, 26, 27, 28 is a run of 55 composite numbers in a row.)