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