Difference between revisions of "2007 iTest Problems/Problem 43"
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== Problem == | == Problem == | ||
− | Bored of working on her computational linguistics thesis, Erin enters some three-digit integers into a spreadsheet, then manipulates the cells a bit until her spreadsheet calculates each of the following | + | Bored of working on her computational linguistics thesis, Erin enters some three-digit integers into a spreadsheet, then manipulates the cells a bit until her spreadsheet calculates each of the following one hundred <math>9</math>-digit integers: |
<cmath> | <cmath> | ||
− | She notes that two of them have exactly <math>8</math> positive divisors each. Find the common prime divisor of those two integers. | + | She notes that two of them have exactly <math>8</math> positive divisors each. Find the common prime divisor of those two integers. |
== Solution == | == Solution == |
Revision as of 03:20, 16 June 2018
Problem
Bored of working on her computational linguistics thesis, Erin enters some three-digit integers into a spreadsheet, then manipulates the cells a bit until her spreadsheet calculates each of the following one hundred -digit integers:
She notes that two of them have exactly positive divisors each. Find the common prime divisor of those two integers.