Mathematics for IGCSE & O level - Number (Section 1 - No. 6) | ExamPlay

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Mathematics for IGCSE & O level - Number (Section 1 - No. 6)

Which of the following is a prime number?

9

15

23

21

Објашњење

A prime number is a number that has exactly two distinct factors: 1 and itself. 23 is a prime number.

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