32.1k views
1 vote
Which of the following is a prime number 67,65,63 or 60

User Ardiya
by
8.4k points

1 Answer

2 votes
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 5 by the end which means it can be divided by 5
63 is composite because the sum of the digits equal to 9 which can be divided by 3 and 9
User Jonathan Leitschuh
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.