There isn't one. Negative numbers have prime factors and numbers don't stop.
The smallest positive numbers with a prime factor is 2.
The smallest prime factors are 2,3,5,7 thus the smallest number would be the product of these will be 210
70 is the smallest number that has prime factors of 2,5 and 7
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).
2310
Two is the smallest prime number and if 10 prime numbers are wanted, and they can repeat, the answer is 210 or 1024.
1155
The smallest positive integer is 3.
Starting from beginning we see that 0 has infinite factors so it is a composite number and 1 is neither prime nor composite. The next number is 2 which has only two factors so it is the smallest prime number.
Starting from beginning we see that 0 has infinite factors so it is a composite number and 1 is neither prime nor composite. The next number is 2 which has only two factors so it is the smallest Prime number.
All prime numbers only have one prime factor.
70
25 = 32