Well, honey, let me break it down for you. The numbers you're looking for are 6 (1, 2, 3, 6), 8 (1, 2, 4, 8), and 9 (1, 3, 9). They each have exactly 4 factors, no more, no less. So there you have it, sweet cheeks.
By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.
Just 36.
60, 72, 84, 90, and 96 each have 12 factors.
Composite numbers have more than two factors. So, the numbers which have two or less than two factors are not composite numbers. Numbers which have exactly two factors are prime numbers. 1 is an exceptional case because it is neither prime nor composite since it has only one factor which is 1.
Sure thing, honey! The only composite number less than 16 that has exactly 4 factors is 6. Why? Because its factors are 1, 2, 3, and 6. So, there you have it, just one sassy little number strutting its stuff below 16 with exactly 4 factors.
Numbers with exactly 6 factors are perfect squares of prime numbers. The prime factorization of a number with exactly 6 factors is in the form ( p^2 ), where ( p ) is a prime number. There are 10 prime numbers less than 30: 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29. So, there are 10 numbers less than 30 that have exactly 6 factors.
By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.
6 (1,2,3,6) 10 (1,2,5,10) and 15 (1,3,5,15).
4, 9, 25 and 49 They are squares of prime numbers.
11
Just 36.
14 (I think).
there are 3 no.2,3 & 5
1, 2, 3, 5, and 7
Every prime number has exactly two factors. They are '1' and the number itself. There are 15 prime numbers less than 50. A few of them are 2, 3, 5, 7, 11, 13, and 47.
62, 65, 69
4, 9, 25, and 49