Q:

What are the prime factors of 45?

A:

The prime factors of 45 are three, three and five. These three numbers represent the unique combination of prime numbers that, when multiplied together, produce 45 as an answer.

Keep Learning

According to About.com, a prime number is a whole number that is larger than one and cannot be divided evenly by any numbers other than one and the number itself. Zero and one are not considered prime numbers, but two, three, five and seven are. A number such as six is considered a composite number and not a prime number because it can be divided by two and three.

A common method used for finding prime factors of a number is to create a prime factorization tree.

Sources:

Related Questions

• A: The factors of 4 are 4, 1 and 2. The product of two or more factors of a number is equal to that number. Four, 1 and 2 are factors because 1 x 4 = 4, 4 x 1... Full Answer >
Filed Under:
• A: Eight numbers are factors of 40, including 1, 2 and 4. Other factors of 40 are 5, 8, 10, 20 and 40.... Full Answer >
Filed Under:
• A: The prime factors of the number 64 are 2 x 2 x 2 x 2 x 2 x 2 or 2 to the 6th power. The number 2 is a prime number and when you multiply six 2’s the produc... Full Answer >
Filed Under:
• A: The factors of 180 are one, two, three, four, five, six, nine, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90 and 180. Any number that can divide into another numb... Full Answer >
Filed Under:
PEOPLE SEARCH FOR