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What are numbers that have 2 factors called?
Prime numbers like 2, 3, 5 and 7.
Pair of numbers whose greatest common factor is the same as one of the number?
Any two prime or relatively prime numbers. 25 and 36, for example.
What is the least common multiple of two prime number?
The LCM of prime numbers is simply their product (a x b, or x*y). The least common multiple of two numbers is the product of the two numbers divided by their greatest common factor. The greatest common factor of two prime numbers is 1. Therefore, the least common multiple of two prime numbers is the two numbers multiplied together, since dividing by 1 will not change the answer. The same applies to "relatively prime" numbers such as 10 and 21, where the GCF is also 1.
What are the factor of co prime no?
The number 1 is the only common factor of co-prime numbers, which is what makes them co-prime. 9 and 10 for example or 15 and 23.
Does prime factorization of composite numbers include prime and composite numbers?
No, prime factorizations consist entirely of prime numbers.
