Other than 2, no even number is prime, as they can all be divided by 2.
Further, no number that ends in 0 can be prime as it can be divided by 10.
Well, let's see. 80 = 20 x 4. 80 = 10 x 8. 80 = 4 x 20. etc. etc.
ANSWER: The next prime number after 80 is 83.
The first prime number after 80 is 83.
The only number that equals 80 is 80, and it's not a prime number.
6 is not a factor of 80. 6 is not a prime number.
4 is not a prime number.
3 is a co-Prime number.
The prime factorization of 80 is 2x2x2x2x5 (or 24x5).
3 is a co-prime number.
number of prime numbers in 71 to 80 = 3prime numbers in 71 to 80 = 71, 73, & 79
No
83 is the first prime number after 79.
It is: 79