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 {21, 2, 12, 25, 19, 11} → ______
- Prime numbers in {9, 15, 21, 23, 25, 2} → ______
- Prime numbers in {5, 11, 27, 13, 29, 19} → ______
- Prime numbers in {7, 29, 5, 15, 3, 9} → ______
- Prime numbers in {11, 17, 19, 13, 29, 7} → ______
- Prime numbers in {21, 25, 7, 17, 3, 23} → ______
- Prime numbers in {13, 5, 3, 21, 7, 8} → ______
- Prime numbers in {3, 12, 5, 2, 19, 23} → ______
- Prime numbers in {13, 17, 8, 2, 21, 15} → ______
- Prime numbers in {13, 9, 19, 21, 11, 17} → ______
- Prime numbers in {27, 7, 15, 9, 13, 23} → ______
- Prime numbers in {11, 17, 25, 3, 27, 19} → ______
- Prime numbers in {5, 9, 17, 8, 2, 15} → ______
- Prime numbers in {2, 12, 11, 5, 25, 9} → ______
- Prime numbers in {13, 17, 25, 19, 23, 27} → ______
- Prime numbers in {5, 7, 17, 27, 19, 3} → ______
- Prime numbers in {5, 13, 8, 3, 11, 21} → ______
- Prime numbers in {3, 9, 15, 8, 12, 27} → ______
- Prime numbers in {29, 9, 25, 8, 7, 23} → ______
- Prime numbers in {5, 17, 8, 27, 7, 19} → ______