macjacknsam macjacknsam

12-11-2015
Mathematics

Answered

Which is a prime number

60

67

65

63

Verified Answer :

204PANDA 204PANDA

12-11-2015

Use the rule of divisibility :
60 is composite because it is even so it can be divided by 2
67 is prime because none if the divisiblility rules work on it
65 is composite because it has a five by the end which means it can be divided by 5
63 is composite because the sum of the digits equal to nine which can be divided by 3 and nine

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