What is the least number that has 4 odd factors that are all the same? Each factor is greater than 1 and can have only 1 itself as factors
greater than 1 and only 1 and itself as factor
factors have to be prime:2,3,5,7...
it has to be odd factors: 3,5,7
least:3
all same, 4 of them, 333*3=81
answer is 81