If "nacarul" is intended to be natural, then the answer is 1, 2, 3, 4 and 5.
If not, sorry for wasting your time.
Just multiply the first five prime numbers! 2x3x5x7x11 = 6x35x11 = 210x11 = 2310. Any multiple of this number "has the first five prime numbers as factors", but 2310 is the smallest such number.
Assuming the first five numbers is meant to refer, not to the first five real numbers but to the first five positive integers, the answer is 1*2*3*4*5 = 120
33,66,99,132,165
0.00001
10946
(2,1), (4,3), (6,5), (8,7) and (10,9).
Some people do, some don't.
a ratio meaning the first number is twenty five times greater then the second
u8iu7i7u
Then it is 2310.
We can't answer that without knowing the numbers. The first five multiples of 5 are 5, 10, 15, 20 and 25.
I think it's one thousand five