Prime Factorization

What is the prime factorization of 25?

• 5 x 5 (or 5^2)

• 5 x 2 x 2

• 10 x 2.5

• 25 x 1

What is the prime factorization of 45?

• 3 x 15

• 3^2 x 5

• 5 x 9

• 2 x 3^2 x 5

Is 1 a prime number?

• Yes, 1 is a prime number.

• No, 1 is not considered a prime number.

• 1 is a prime number by definition.

• 1 is a prime number because it is only divisible by itself.

What is prime factorization?

• The process of dividing a number by its factors.

• The process of expressing a number as the product of its prime factors.

• The method of finding the square root of a number.

• The technique of adding all the factors of a number.

What are prime numbers?

• Natural numbers greater than 1 that have no positive divisors other than 1 and themselves.

• Numbers that can be divided by 2 without a remainder.

• Any whole number that is not a fraction.

• Numbers that are only divisible by 3.

How do you find the prime factorization of a number?

• To find the prime factorization, divide the number by the smallest prime number until you reach 1.

• Multiply the number by the largest prime number until you reach 1.

• Add all the digits of the number together to find the prime factorization.

• Subtract the smallest prime number from the number repeatedly until you reach 1.

Can a prime number be even?

• Yes, the only even prime number is 2.

• Yes, all even numbers are prime.

• No, prime numbers are always odd.

• Yes, but only if they are greater than 2.

What is the prime factorization of 30?

• 2 x 3 x 5

• 3 x 10

• 5 x 6

• 2 x 15

What is the prime factorization of 100?

• 2^2 x 5^2

• 2 x 50

• 10 x 10

• 4 x 25

What is the prime factorization of 12?

• 2 x 2 x 3

• 2^2 x 3

• 3 x 4

• 2 x 6