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The number of factors of a number is calculated as the product of the powers of the number written in power format increased by 1.
As there are required to be 5 factors, and as 5 is a prime, it can only be achieved if the number has a prime factorisation which is a single prime raised to the 4th power.
The smallest prime is 2, and 2⁴ = 16
The next prime is 3, and 3⁴ = 81 which is too big.
→ the required number is 16 (which has the 5 factors 1, 2, 4, 8, 16).
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What is a number between 15 and 20 that is a composite number and has exactly 5 factors?
16
My age is between 20 and 50. It's an even number. It has exactly 9 factors. How old am I?
48
What is a number between 0 and 20 that has five factors?
1 and 5
What are the factors of 4 and is it prime or composite?
The factors of 4 are 1, 2, and 4. The only prime factor of 4 is 2. The factors of 20 are 1, 2, 4, 5, 10, and 20. The prime factors of 20 are 2x2x5.
What number between 1 and 20 has only 3 factors?
It is 29 because it's a prime number
What number between 1 and 20 has exactly 5 factors?
16 does.
What number between 1 and 20 have exactly 5 factors?
16
What number has exactly 5 factors and is between 1and 20?
16
What is a number between 15 and 20 that is a composite number and has exactly 5 factors?
16
Eduardo thinks of a number between 1 and 20 that has exactly 5 factors. What number is he thinking of?
16
My age is between 20 and 50. It's an even number. It has exactly 9 factors. How old am I?
48
Which numbers between 20-28 have exactly two factors?
48
What is another number between 20 to 30 that has the same number of factors as 28?
20 and 28 both have six factors.
What number between 1 and 20 has 5 factors?
The factors of 16 are 1, 2, 4, 8, and 16.
Which number between 1 and 20 has the most factors?
12, 18 and 20 each have six factors.
What is the number between 1 and 20 that has 5 factors?
16 has five factors.
What number between 1 and 20 has five factors?
16 has five factors.
