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Lesson: Finding the Prime Factorization of a Composite Number

In this lesson, we discuss the difference between prime and composite numbers. We also learn how to identify prime numbers in a given range of numbers and how to find the prime factors of numbers.

Video: Finding Prime Factorization of a Number

Worksheet: Finding the Prime Factorization of a Composite Number • 20 Questions

Q1:

What is a prime number?

Aa number with exactly three factors, one factor is repeated and the other two are 1 and itself
Ba number with exactly two factors, 0 and itself
Ca number with exactly two factors, 1 and itself
Da number that has one factor repeated
Ea number with more than two factors

Q2:

What is a composite number?

Aa number with exactly two factors, 0 and 1
Ba number with exactly two factors, 0 and itself
Ca number with more than two factors
Da number that has one factor repeated
Ea number with exactly two factors, 1 and itself

Q3:

Determine whether the number 25 is prime, composite, or neither.

Acomposite
Bneither prime nor composite
Cprime

Q4:

Determine whether the number 157 is prime, composite, or neither.

Aprime
Bneither prime nor composite
Ccomposite

Q5:

What is the smallest composite number between 31 and 37?

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