No. A prime number has only two factors, 1 and itself. However 42 has other factors: 1 x 42 = 42 2 x 26 = 42 3 x 14 = 42 6 x 7 = 42
All numbers that only have one and itself as factors are prime. Therefore, to tell if a number is prime simply find it's factors. If it has more than two factors than it is not a prime number.
Prime numbers are numbers that are only divisible by 2 numbers (one and themselves), for example 13, 17 etc.
no no
A number cannot become a prime number. It either is or isn't. It has to have factors of only one and itself.