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18 votes
Last one help please????????

Last one help please????????-example-1
User Asanas
by
7.0k points

2 Answers

2 votes

21 because one is the missing

User Tom Hunt
by
8.0k points
8 votes

Answer:

The answer would be 23.

Explanation:

All numbers with only two factors are prime numbers.

23 is the only prime number.

User Siamii
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6.9k points