Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {15, 7, 25, 11, 13, 17} → ______
- Prime numbers in {19, 17, 11, 23, 29, 8} → ______
- Prime numbers in {29, 13, 3, 17, 12, 11} → ______
- Prime numbers in {19, 8, 17, 21, 5, 13} → ______
- Prime numbers in {9, 5, 25, 21, 15, 13} → ______
- Prime numbers in {13, 8, 23, 3, 29, 11} → ______
- Prime numbers in {15, 2, 13, 11, 25, 12} → ______
- Prime numbers in {25, 7, 3, 17, 8, 19} → ______
- Prime numbers in {13, 25, 23, 19, 3, 21} → ______
- Prime numbers in {21, 27, 8, 15, 7, 3} → ______
- Prime numbers in {17, 27, 13, 29, 7, 12} → ______
- Prime numbers in {27, 21, 17, 7, 3, 8} → ______
- Prime numbers in {23, 7, 11, 2, 3, 12} → ______
- Prime numbers in {9, 15, 5, 17, 21, 12} → ______
- Prime numbers in {25, 3, 9, 15, 5, 2} → ______
- Prime numbers in {7, 5, 21, 8, 29, 2} → ______
- Prime numbers in {29, 12, 23, 8, 21, 9} → ______
- Prime numbers in {29, 27, 25, 11, 15, 23} → ______
- Prime numbers in {17, 11, 21, 5, 7, 19} → ______
- Prime numbers in {13, 11, 9, 29, 21, 3} → ______