0
Still curious? Ask our experts.
Chat with our AI personalities
Devin
Maxine
JordanAdd your answer:
Earn +20 pts
What number between 40 and 60 has exactly three factors?
All prime squares have exactly three factors.49 has exactly three factors: 1, 7, and 49.
Which number has exactly 15 factors?
The number that has exactly 15 factors is 28. To determine the number of factors a number has, you can prime factorize the number and then add 1 to each exponent in the prime factorization and multiply these numbers together. In the case of 28, the prime factorization is 2^2 * 7^1, so the number of factors is (2+1) * (1+1) = 3 * 2 = 6. To have exactly 15 factors, the number needs to be a square of a prime number, so 28 = 2^2 * 7^1 fits this criteria.
Which number has exactly 7 factors?
64
What are the factors and prime factors of 7?
Seven is a prime number. A prime number has only itself and 1 as factors. So the factors of seven are 1 and 7. 1 and 7
Is 7 prime or composite?
7 is a prime number because it is only divisible by 1 and 7.
