Question

12
A prime number has only two factors, namely, 1 and itself.
Which of the following represents a prime number?
A
2+7
4*1
С
12.7 x 1
1+5+ 3​

Answer 1

Answer:

no remainder. A prime number has only two factors, 1 and itself; this is how a prime number is defined. 5 is a prime number because it has only two factors, 1 and 5. 8 has factors 1, 2, 4 and 8, so it is not prime.