10 (1, 2, 5, 10)
18 (1, 2, 9, 18)
22 (1, 2, 11, 22)
etc.
14 (I think).
0, 1, 2, 3
Four numbers less than thirty, 12, 18, 20, and 28, each have exactly 6 factors.
All the numbers less than 100 that are the product of exactly three different prime numbers are 30, 42, 66, 70, and 78.
All the numbers less than 100 that are the product of exactly three different prime numbers are 30, 42, 66, 70, and 78.
By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.
14 (I think).
4, 9, 25, and 49
4, 9, 25, 49
0, 1, 2, 3
Four numbers less than thirty, 12, 18, 20, and 28, each have exactly 6 factors.
Prime squares have three factors. There are 11 of them in that range.
The smallest number that has exactly three factors is 4.
4, 9, 25 and 49 They are squares of prime numbers.
6, 8 and 91 and three examples.
All the numbers less than 100 that are the product of exactly three different prime numbers are 30, 42, 66, 70, and 78.
All the numbers less than 100 that are the product of exactly three different prime numbers are 30, 42, 66, 70, and 78.