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Problem 235
Algebra Difficulty 1.9 Find the answer CEMC Fermat
If 10n=100020, what is the value of n?
A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.
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Official solution
Using exponent laws, 100020=(103)20=1060 and so n=60.
Source: Omni-MATH,
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