VS
Factors and Multiples: Prime Numbers & Factor Trees
JSS 1 - 3Factors and Multiples•Module 1 • Lesson 2•Est. 25 mins
Progress0%
0 Pts
Section 1 of 3
Building Blocks of Numbers: Prime Numbers
### What is a Prime Number?
A **prime number** is a whole number greater than 1 that has **only two factors**: 1 and itself.
Examples of primes: $2, 3, 5, 7, 11, 13, 17, 19, 23...$
* Note: **2** is the ONLY even prime number!
* Note: **1** is NOT a prime number (it only has one factor).
Any number that has more than two factors is called a **composite number** (e.g., 4, 6, 8, 9, 12).
Core Takeaway: Primes are like the chemical elements of arithmetic. Every number can be built by multiplying primes together.
🔬
Dr. (Mrs.) Adebayo
Senior Secondary & WAEC/JAMB Senior Fellow
Teacher Emeka•12:25 PM
Good day, scholar. 📚 I am Dr. Adebayo. Our mission is academic excellence and mastery of your senior secondary curriculum for top grades in WAEC and JAMB.