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18 is not a Prime number so no number can have 18 as a prime factor.
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Earn +20 ptsQ: What two composite numbers have the prime who's prime factors are 18?
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Why 0 and 1 are not prime numbers?
Prime numbers are whole numbers evenly divisible only by themselves and 1. By convention, 1 is not considered a prime number. Zero cannot be divided by itself because division by 0 is not allowed so it cannot meet the definition of being prime.
One of two numbers whos a product is 1?
reciprocal
Two numbers whos product is one?
One-half and two.
Two numbers whos sum is zero what is this called?
Additive inverses
Is 780 a prime number?
No it isn't, it's divisible by 10 and 2 and 5. Also, No 780 is not a prime number. A prime number is defined as a number whos divisbility is 1 and its self.
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