None because prime numbers have only two factors
Numbers that have 2 factors are prime numbers; Numbers that have 4 factors are either: * the cube of a prime; or * the product of two different primes; Numbers that have 8 factors are either: * a prime to the power 7; * the product of a prime cubed and different prime; * the product of three different primes.
47 does not have 4 prime numbers (factors or divisors).
Its factors are: 1 2 4 19 38 and 76 Prime numbers: 2 and 19 Composite numbers: 4 38 and 76 Note: 1 is neither a prime or composite number
The prime factors of 30 are: 2,3,5
The squares of all prime numbers have 3 factors.
Numbers without factors are PRIME Numbers. Taking the first ten numbers. 1,2,3,4,5,6,7,8,9,10. The prime numbers are 2,3,5,7, they have no factors. 4,6,8,9,10. Are not prime numbers as they have factors. 4 has a factor of '2' 6 has factors of '2 & 3'. 8 has factors of' 2 & 4'. or' 2,2,2.' 9 has factors of '3,3', 10 has factors of '2 5.' '1' is unique
4
2 and 2. Prime factors needn't be distinct. Powers of the primes have only this prime as factor and 4 is a power of 2.
Two numbers are relatively prime if and only if they share no common proper factors (other than 1, which is a factor of all numbers). The factors of 4 are 4 and 2, while 7 has no factors other than 1 and itself. Since 4 and 7 have none of the same proper factors, they are relatively prime.
16 if the prime factors don't have to be distinct. 210 if they do.
4
If the two prime numbers are different: You get the two prime numbers, plus 1, plus the product. For example, if you multiply 2 x 3 = 6, the factors of 6 are 2, 3, 1, and 6. If the two prime numbers are the same: You get the prime number, 1, and the product. For example 2 x 2 = 4. The factors of 4 are 2, 1, 4.