Four numbers less than thirty, 12, 18, 20, and 28, each have exactly 6 factors.
there are 3 no.2,3 & 5
14 (I think).
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.
4, 9, 25, and 49
They all are prime numbers except 1
By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.
Four numbers less than thirty, 12, 18, 20, and 28, each have exactly 6 factors.
4, 9, 25 and 49 They are squares of prime numbers.
11
Just 36.
there are 3 no.2,3 & 5
14 (I think).
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.
4, 9, 25, 49