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Answer:
1) 3 × 5
2) 2 × 2 × 3, OR 2² × 3
3) 2 × 2 × 2 × 2, OR 2⁴
Step-by-step explanation:
Try skip counting by 2 and/or by 3 in this activity. (only works for smaller numbers)
Then divide the given number by that number you used in skip counting if the given number was there.
Repeat the steps until the remaining number becomes a prime number.
That's all. Hope it helps.