What are the numbers between 1 and 50 having exactly three factors?

49 and 45 are numbers having exactly three factors.

What numbers has exactly 3 factors?

We know that the numbers between 1 and 100 which have exactly three factors are 4, 9, 25 and 49. Factors of 4 are 1, 2 and 4. Factors of 9 are 1, 3 and 9.

What are the factors of the numbers 1 to 50?

Table of Factors and Multiples

Factors		Multiples
1, 23	23	46
1, 2, 3, 4, 6, 8, 12, 24	24	48
1, 5, 25	25	50
1, 2, 13, 26	26	52

How many prime numbers are there between the numbers 1 to 50?

15 prime numbers
There are 15 prime numbers from 1 to 50.

What are the twin primes between 50 and 100?

Two prime numbers are known as twin-primes if there is only one composite number between them. The pairs of twin-primes between 50 and 100 are 59, 61 and 71, 73.

How do you find the numbers between 1 and 100 having exactly 3 factors?

Let us consider the square of prime numbers which are below 100. Therefore, the numbers between 1 and 100 with exactly 3 factors are 4, 9, 25, 49.

What are the twin primes between 1 and 50?

Hence, the twin prime numbers from 1 to 50 are (2,3), (5,7), (11,12), (17,19) and (29,30).

What are the factors of 50 besides 1 and 50?

The factors of 50 are 1, 2, 5, 10, 25, and 50. We can use prime factorization to get all the factors.

What are the factors of 50?

Factors of 50

• Factors of 50: 1, 2, 5, 10, 25, 50.
• Prime Factorization of 50: 2 × 5 × 5.

What are the twin prime numbers from 1 to 50?

If the difference between two co-prime numbers is 2 then, the numbers are said to be twin prime numbers. Hence, the twin prime numbers from 1 to 50 are (2,3), (5,7), (11,12), (17,19) and (29,30).

What is the probability to choose the one prime number from 1 to 50?

The probability that a prime number is selected from 1 to 50, the primes that are less than 50 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43 and 47. There are 15 primes less than or equal to 50. Thus the probability that a prime is selected at random is 15/50 = 30\%.