Math Problem Statement
Alana noticed that a number like 8 = 2 ! (i.e. đť‘ťđť‘źđť‘–đť‘šđť‘’ ! ) has exactly four factors: 1, 2, 2 ! , and 2 ! . What other numbers are of this form have exactly four factors? Do all the perfect cubes have exactly four factors? Is it true that all numbers that have exactly four factors are perfect cubes? Give reasoning in simple words.
Solution
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Math Problem Analysis
Mathematical Concepts
Number Theory
Factors
Prime Numbers
Perfect Cubes
Formulas
Number of factors formula
Theorems
Fundamental Theorem of Arithmetic
Suitable Grade Level
Grades 7-9