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By definition, a Prime number has exactly two factors. So, there are no prime numbers with exactly three factors.

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Q: What are all the numbers less than 100 with exactly 3 factors that are prime?
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Related questions

What are 3 numbers less than 50 that have exactly 2 factors?

4, 9, 25 and 49 They are squares of prime numbers.


What 3 numbers less than 50 have exactly 2 factors?

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.


How do you identify prime numbers less than 100?

Numbers can be checked to see if they are primes simply by factoring them. Every prime number has exactly two factors, 1 and the number itself. If there are more or less than 2 factors, the number is not a prime. 1 has only one factor so it is not a prime, and composite numbers have 3 or more factors.


Which numbers are not composite numbers?

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.


What other numbers less than fifty have exactly three prime factors?

4, 9, 25, and 49


Which numbers less than a 100 have exactly 3 factors?

prime squares 4, 9, 25, 49


What is special about number that are less than 50 and exactly 3 factors?

Nothing special. They are squares of prime numbers.


What are 2 numbers less than 50 with exactly 3 factors?

Prime squares, like 4, 9, 25 and 49


What are all the numbers that are less than 75 with exactly 3 factors?

Prime squares like 4, 9, 25, and 49.


What numbers would have less than two factors?

Prime numbers


What are the prime factors of the numbers from 1 to 15000?

The set of prime factors of the numbers from 1 to 15,000 would be the set of prime numbers between 1 and 15,000. The link below has a list of the first 10,000 prime numbers, so if you take the primes less than 15,000, you will have the set of prime factors of the first 15,000 numbers. For prime factors of individual numbers, check the related question, "What are the prime factors of the numbers from 1 to 200?" Also check for WikiAnswers questions in the form of "What are the prime factors of __?" and "What are the factors and prime factors of __?"


What are all the numbers less than 100 that are the product of exactly three different prime numbers?

All the numbers less than 100 that are the product of exactly three different prime numbers are 30, 42, 66, 70, and 78.