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13: 1, 13

14: 1, 2, 7, 14

15: 1, 3, 5, 15

16: 1, 2, 4, 8, 16

17: 1, 17

18: 1, 2, 3, 6, 9, 18

19: 1, 19

20: 1, 2, 4, 5, 10, 20

21: 1, 3, 7, 21

22: 1, 2, 11, 22

23: 1, 23

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Wiki User

8y ago

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More answers

19: 1, 19

21: 1, 3, 7, 21

23: 1, 23

25: 1, 5, 25

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Wiki User

7y ago
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23, like all prime numbers, has two factors.

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Wiki User

7y ago
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13 - 23 has 4 positive factors: 1, 2, 5 and 10.

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Wiki User

8y ago
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Two.

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Wiki User

8y ago
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One.

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Wiki User

9y ago
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Q: How much factors does 23 have?
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