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The square of any Prime number has exactly three factors: 22, 32, 52, etc.
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What number is greater than 12 in less than 40 and has exactly 3 factors?
The number that is greater than 12, less than 40, and has exactly 3 factors is 25. A number has exactly 3 factors if it is the square of a prime number. In this case, 25 is the square of the prime number 5 (5² = 25), and it has the factors 1, 5, and 25.
What number is less than 30 and has exactly 8 factors?
24
How many whole numbers less than 2010 have exactly three factors?
14 (I think).
How many whole number less than a hundred has the most factors?
the number 90 has the most factors under 100
What number has exactly 3 factors that is less than 40 but greater than 12?
The answer is 25 because it has the factors 1,5,25! :)
Which whole number less than 100 has the fewest number of factors?
That would be 1. The only factor of 1 is 1. All other whole numbers have at least two factors. Prime numbers have exactly two factors, while composite numbers have more than two factors.
What is a number that is less than 3 and has three factors?
The smallest number that has exactly three factors is 4.
What number is greater than 12 in less than 40 and has exactly 3 factors?
The number that is greater than 12, less than 40, and has exactly 3 factors is 25. A number has exactly 3 factors if it is the square of a prime number. In this case, 25 is the square of the prime number 5 (5² = 25), and it has the factors 1, 5, and 25.
What whole number less than 150 has odd number of factors?
There are 12 numbers less than 150 which have an odd number of factors: 1,4,9,16,25,36,49,64,81,100,121,144.
What number is less than 30 and has exactly 8 factors?
24
How many whole numbers less than 2010 have exactly three factors?
14 (I think).
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 whole number less than 1000 has the most factors?
840
What whole number less than 100 has 9 factors?
36
What whole number less than 100 have nine factors?
36
What are the three greatest whole numbers less than 200 such that each number has an odd number of factors?
The three greatest whole numbers less than 200 that each have an odd number of factors are 144, 169 and 196.
How many whole numbers less than 10 have an odd numbers of unique factors?
A whole number has an odd number of unique factors if and only if it is a perfect square. The perfect squares less than 10 are 0, 1, 4, and 9. Therefore, there are four whole numbers less than 10 that have an odd number of unique factors.
