2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97
7/100. That's the simplest way, since 7 is a prime number.
Memorize them all.
Prime factorization is a way to express every composite number as the product of prime numbers(or prime factors). Let us consider the number 100. Prime factorization of 100 = 2 x 2 x 5 x 5. It can be seen that there are two distinct prime factors: 2 and 5. And 5 is the greatest prime factor. 100 can be expressed as 2 x 50. The only prime factor we have in this expression is 2 and this makes us to think that 2 is the only prime factor of 100, which is untrue. So with the help of prime factorization it is possible to find all the prime factors and the greatest prime factor.
102 (ten squared) is a way to write 100 but it is not the prime factorization because ten isn't prime. The prime factorization of 100 is 2 x 2 x 5 x 5 or 22 x 52
There is no easy way or really, any way at all to memorize an infinite list.
study hard
it is a way of finding out all of the prime numbers that you have to multiply to equal the desired number.
-100 all the way to -999
The fractional part of this, 17/100, doesn't reduce (17 is prime). When we add the 3 (the whole number) to this fraction, we get 317/100. 317 is also prime, though, so the only way to express this as a fraction is 317/100.
A prime number is one that is only divisible by 1 and itself. Just work out if it divides into anything. To do this try dividing the number by all prime numbers under its half way value.
There is no such thing as THE prime number. Prime numbers are not written in any special way.
4.01=401/100 There's no other way to write this fraction as 401 is a prime number