47 does not have 4 prime numbers (factors or divisors).
210 is the number whose prime factors are the first four primes unrepeated.
420 has four prime factors. Prime factors don't usually travel in pairs.
Every product of two prime numbers has four factors.
39 is not a prime number because it has four factors: 1,3,13,39 and because prime number are numbers who has 2 factors.
420 has 5 prime factors, four of which are different prime numbers. Prime factors of 420 are 2 x 2 x 5 x 3 x 7.
The prime factors of 84 are 2, 2, 3, and 7.
Some factors are prime numbers.
All numbers have factors. Some factors are prime numbers. These are known as prime factors. Some numbers have some of the same prime factors as other numbers. These are known as common prime factors. 3 is a common prime factor of 12 and 15.
All numbers have factors. Some factors are prime numbers. These are known as prime factors.
Prime factors are factors that are also prime numbers.
The new number has four factors: 1, the two prime numbers and the new product.