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How many numbers are there less than thirty have exactly 6 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.
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 3 numbers less than 50 that have exactly 2 factors?
4, 9, 25 and 49 They are squares of prime numbers.
How many natural numbers less than 1000 will have exactly 3 factors?
11
How many numbers less than 100 have exactly nine distinct factors?
Just 36.
How many numbers less than 10 have exactly 2 factors?
there are 3 no.2,3 & 5
How many whole numbers less than 2010 have exactly three factors?
14 (I think).
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.
Numbers less than 10 that have exactly 2 factors?
1, 2, 3, 5, and 7
What other numbers less than fifty have exactly three prime factors?
4, 9, 25, and 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 three numbers less than one hundred with exactly four factors?
0, 1, 2, 3
