answersLogoWhite

0


Best Answer

3 x 17 = 51. It has factors other than 1 and itself. It is composite.

61 is prime. Its only factors are 1 and 61.

71 is prime. Its only factors are 1 and 71.

7 x 13 = 91. It is a composite number.

User Avatar

Wiki User

βˆ™ 10y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Are 51 61 71 91 prime numbers?
Write your answer...
Submit
Still have questions?
magnify glass
imp