42
70
If you mean 5 different prime factors, there are none. Multiplying the first five primes, you get 2*3*5*7*11 = 2310. If there is no requirement that the prime factors be different, there are many such numbers, the smallest being 2*2*2*2*2 = 32, and the largest being 2*2*2*5*7 = 280.
A prime number has exactly two factors: itself and 1.
To find the prime factors of a number, divide the number by the smallest prime number as many times as needed, then by the next smallest prime, forming a "factor tree."180 / 2 = 9090 / 2 = 4545 / 3 = 1515 / 3 = 5The prime factors are 2 x 2 x 3 x 3 x 5 or 22 x 32 x 5
All composite numbers have more than 2 factors whereas prime numbers have only 2 factors
The prime factors are: 2 x 2 x 5
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).
The smallest number with three different prime factors is 30.
There isn't one. Negative numbers have prime factors and numbers don't stop. The smallest positive numbers with a prime factor is 2.
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.
70
It is: 30
70
70
It is 11 which is a prime number whose factors are itself and one
5 and 11
84