1) Which of these numbers are prime numbers? a) 1 b) 6 c) 23 d) 47 e) 127 f) 45 2) What are the multiples of 3? a) 12 b) 22 c) 18 d) 60 e) 62 f) 24 3) Which numbers are a factor of 22? a) 2 b) 1 c) 6 d) 3 e) 4 f) 11

Multiples, factors and primes.

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