The numbers less than 100 with exactly 6 factors are of the form a2b where a and b are different primes.
12, 18, 20, 28, 44, 45, 50, 52, 63, 68, 75, 76, 92 and 99.
32
11
4, 9, 25, 49
less. One hundred and something is always less than three hundred and something.
6 (1,2,3,6) 10 (1,2,5,10) and 15 (1,3,5,15).
0, 1, 2, 3
49 has exactly 3 factors (1, 7, and 49) and is greater than 40 and less than 60.
Four numbers less than thirty, 12, 18, 20, and 28, each have exactly 6 factors.
24
25
By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.
The answer is 25 because it has the factors 1,5,25! :)
The smallest number that has exactly three factors is 4.
25
I guess it would be 45,63,75,99 they each have 6 factors
The most factors any odd number less than 100 has is 6. There are 4 numbers which have 6 factors:45, 63, 75 & 99.
4, 9, 25