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