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September 4, 2015
Posted by **HANNAH** on Sunday, September 14, 2008 at 1:01pm.

How would i figure this out?

- Algebra -
**bobpursley**, Sunday, September 14, 2008 at 1:10pmI would start with two digit numbers...

100 factors 2,5,25,4,50,10, 100, 1 eight factors check that.

81 factors 3,9,27,81,1six factors

64 2,4,16,32, 64,1,8 seven factors

recheck those, and work downward to find one with nine factors.

- Algebra -
**David Q.**, Sunday, September 14, 2008 at 1:11pmThere aren't that many two-digit perfect squares. I'd simply try them all out, starting with the largest I can think of (since that's most likely to have nine factors) and work backwards until I find one that works.