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Q: What is the smallest number that has exactly three different factors?

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I think that it is 4

The smallest number that has exactly eight factors is 24. The factors of 1,2,3,4,6,8,12, and 24

The factors of 4 are 1, 2, and 4 .

The smallest number with exactly eight factors is 24.

192

6

192

48

1260

100

12

6

4096

Answer16 is the smallest natural number that has exactly five factors; which are: 1, 2, 4, 8, and 16. Only squares have an odd number of factors.

1024

The smallest number that has exactly three factors is 4.

It is in fact 72

1369

45

The smallest prime factors are 2,3,5,7 thus the smallest number would be the product of these will be 210

The smallest is 192 but there are infinitely many such numbers. For example, take any prime number to the 13th power and the result will have exactly fourteen factors. The smallest is 192.

4? the factors of 4 are 1,4 and 2

6. Factors are 1, 2, 3, and 6.

24

8, 2*2*2