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What numbers have exactly 3 different prime factors?
There are an infinite number of them. 8 has three prime factors, 30 is the first with three distinct prime factors.
How many whole numbers less than 2010 have exactly three factors?
14 (I think).
Is 3 a prime or composite number why?
Prime numbers have exactly two factors. 3 has exactly two factors: 1 and 3. So 3 is prime. Composite numbers have more than two factors. 4 is composite because it has three factors: 1, 2, and 4.
What is the sum of the two smallest whole numbers that each has exactly three distinct positive factors?
4 and 9
3 numbers between 30 and 50 exactly 2 factors each?
31, 37, 41, 43, 47Pick three.
Numbers with exactly 3 factors?
Squares of prime numbers have exactly three factors.
What do say for numbers which have exactly 3 factors?
Numbers with exactly three factors are squares of prime numbers.
Numbers that have exactly three factors?
Squares of primes.
What numbers with exactly 3 factors are?
A number has exactly three factors if and only if it is the square of a prime number.
What are all the numbers less than 100 with exactly 3 factors that are prime?
By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.
What are five prime numbers that have three factors and what are their similarities?
There are no prime numbers with three factors. By definition, a prime number has exactly two factors - 1 and itself.
What are the three numbers below 30 that have exactly 3 factors?
Numbers with three factors are squares of primes. So: 4, 9, 25
What number below 40 has exactly three factors?
Numbers with three factors are squares of primes: 4, 9, 25
What are the smallest four numbers that have exactly three factors?
4, 9 and 25.
How many square numbers are between 1 and 1000 that have five factors?
There are three of them with exactly five factors.
What numbers have exactly 3 different prime factors?
There are an infinite number of them. 8 has three prime factors, 30 is the first with three distinct prime factors.
What numbers greater than 100 have three factors?
Numbers having exactly three factors are the squares of prime numbers. Examples of these numbers greater than 100 are 121, 169, 289, 361, 529, 841, etc.
