You can't find an LCM or a CF of a single number. You need at least two.
The prime factorization of 71421 is 3 x 7 x 19 x 179
If you're asking about 7, 14 and 21, the LCM is 42 and the CF are 1 and 7
7
2 x 7
3 x 7
126 (which is not a prime power factorization) has 12 factors.
That's the prime factorization.
When all the factors are prime.
67 is prime; it has no proper factors.
the prime factorization
When all the factors are prime numbers, that's a prime factorization.
The prime factorization of 71421 is 3 x 7 x 19 x 179 but that's probably not what we're dealing with here. 7 2 x 7 = 14 3 x 7 = 21 The LCM and GCF refer to the set as a whole, not the individual numbers. The GCF of 7, 14, 21 is 7 The LCM of 7, 14, 21 is 42
That's the prime factorization.
The prime factorization
All numbers have factors. Some factors are prime numbers, some are composite numbers, one is neither. When finding the factors of a number, you find all the factors. The prime factorization is a multiplication string of just prime factors that will total the given number.
126 (which is not a prime power factorization) has 12 factors.
the prime factorization.
a prime factorization
The prime factorization.
A prime number has no factors other than 1 and the number itself. If prime factorization of a number reveals one or more additional prime factors, the number is a composite.
That's the prime factorization.
Prime factorization is when you find all the prime factors of a number.