This FREE worksheet helps students practice key skills, including factors, multiples, prime numbers, GCF, and LCM in a simple, structured format. With 12 mixed questions (circle, true/false, and fill-in), this resource is perfect for warm-ups, homework, centers, or quick assessment. Includes:• 1 Student Worksheet • Answer Key for easy grading Skills Covered:• Factors & multiples • Prime numbers • Greatest Common Factor (GCF) • Least Common Multiple (LCM) Great for 4th–5th grade math review or in