30
210 is the number whose prime factors are the first four primes unrepeated.
210
It is 1 because 7 is a prime number whose only factors are itself and one.
A whole number greater than 1 whose only factors is itself and 1 is called a prime factor. 2, 3, 5, 7, and 11, are just a few of them.
44
79 is a prime number. There is no common factor (other than 1) with 38 (whose prime factors are 19 and 2)
The number is 6.
A prime number.
Yes
That number is 724.
13 is a Prime number whose only factors are itself and one