kimcel07
Oct 22, 2007, 07:45 PM
Write 243 in exponential notation
J_9
Oct 22, 2007, 07:46 PM
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s_cianci
Oct 22, 2007, 07:49 PM
In other words, what number, when repeatedly multiplied by itself a certain number of times, yields the result 243? Keep in mind that 243 is an odd number so that's a hint. Look for some things that it's divisible by ; maybe try a factor tree.
terryg752
Oct 22, 2007, 10:46 PM
243 = 3 times 81 = 3 times 9 times 9
= 3 times 3 times 3 times 3 times 3
= 3^5