The fundamental theorem of arithmetic says any integer can be factored into a unique product of primes. The is the prime factored form.
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32 x 19
45 = 32 x 51
23 x 53 = 1000
All numbers have factors. Some factors are prime numbers. A prime factor is a factor that is a prime number. A common prime factor is a prime factor that appears on the list of factors of two or more given numbers.
A factor can or cannot be a prime number Ex: 2 is the factor of all other even numbers its a prime number but 9 is a factor of 18 and its not a prime number A prime is a factor but a factor being a prime number varies