Grade 5 Factoring Worksheet: Circle the prime numbers (2-50).

I need to solve this problem by identifying and circling all the prime numbers between 2 and 50 from the given list.

First, let me recall what a prime number is: a prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Let me go through each number in the worksheet and identify which ones are prime:

- 18: Not prime (divisible by 2, 3, 6, 9)
- 27: Not prime (divisible by 3, 9)
- 23: Prime (only divisible by 1 and 23)
- 8: Not prime (divisible by 2, 4)
- 7: Prime (only divisible by 1 and 7)
- 33: Not prime (divisible by 3, 11)
- 39: Not prime (divisible by 3, 13)
- 37: Prime (only divisible by 1 and 37)
- 22: Not prime (divisible by 2, 11)
- 16: Not prime (divisible by 2, 4, 8)
- 3: Prime (only divisible by 1 and 3)
- 6: Not prime (divisible by 2, 3)
- 9: Not prime (divisible by 3)
- 5: Prime (only divisible by 1 and 5)
- 11: Prime (only divisible by 1 and 11)
- 30: Not prime (divisible by 2, 3, 5, 6, 10, 15)
- 41: Prime (only divisible by 1 and 41)
- 36: Not prime (divisible by 2, 3, 4, 6, 9, 12, 18)
- 25: Not prime (divisible by 5)
- 29: Prime (only divisible by 1 and 29)
- 17: Prime (only divisible by 1 and 17)
- 32: Not prime (divisible by 2, 4, 8, 16)
- 38: Not prime (divisible by 2, 19)
- 13: Prime (only divisible by 1 and 13)
- 47: Prime (only divisible by 1 and 47)
- 30: Not prime (already identified)
- 38: Not prime (already identified)
- 28: Not prime (divisible by 2, 4, 7, 14)
- 16: Not prime (already identified)
- 40: Not prime (divisible by 2, 4, 5, 8, 10, 20)
- 5: Prime (already identified)
- 25: Not prime (already identified)
- 35: Not prime (divisible by 5, 7)
- 45: Not prime (divisible by 3, 5, 9, 15)
- 15: Not prime (divisible by 3, 5)
- 16: Not prime (already identified)
- 4: Not prime (divisible by 2)
- 2: Prime (only divisible by 1 and 2)
- 12: Not prime (divisible by 2, 3, 4, 6)
- 18: Not prime (already identified)

The prime numbers in the worksheet are: 2, 3, 5, 7, 11, 13, 17, 23, 29, 37, 41, 47.

These are the numbers that should be circled on the worksheet.