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Earn +20 ptsQ: -2x9 equals -18 what is the prime factor?
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What number has the factor pairs of x 2x9 and 3x6?
18
Are 25 and 18 relatively prime?
Yes, they are. 5 is the only prime factor of 25 and 5 is not a factor of 18, so they have no prime factors in common, which is what relatively prime means.
Is 9 a prime number and a factor of 18?
No, 9 is not a prime number because it has factors other than 1 and itself. In this case, 9 is a factor of 18 because 9 multiplied by 2 equals 18. Prime numbers are numbers that have exactly two factors, 1 and the number itself, while factors are numbers that can be multiplied together to get the original number.
What is the prime factor of the composite number of 18?
18 = 2 * 3 * 3
What pair of numbers is 30 and 18 a common prime factor?
The common prime factors of 18 and 30 are 2 and 3.
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