The smallest prime factors are 2,3,5,7 thus the smallest number would be the product of these will be 210
How about: 105
1155
30,030 Factorization: 2x3x5x7x11x13
210 with factors of 2, 3, 5, and 7
The smallest number with three different prime factors is 30.
Logically, the smallest number with 4 different prime factors would have to be the product of the smallest four prime numbers. So the smallest natural number with four different prime factors is 210 (2*3*5*7).
How about: 105
1155
As a product of its prime factors: 2*3*5*7 = 210
5 and 11
30,030 Factorization: 2x3x5x7x11x13
1155
what is the smallest positive integer that has four different prime factors
If a number has 5 factors then it most certainly is not prime. Hence there is some confusion as to what you are asking here.
210 with factors of 2, 3, 5, and 7
210, welcome :D
154