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Earn +20 ptsQ: What prime numbers go into 18?
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How many pairs of prime numbers are there to express 18 as the sum of two prime numbers?
There are two pairs of prime numbers that express 18 as the sum of two prime numbers: 7 + 11 = 18 and 5 + 13 = 18.
Do prime numbers go up to 100 or 10000?
Prime numbers go on forever.
Is 18 and 105 relatively prime numbers?
No.
What numbers are relatively prime with 18?
Oh, dude, "relatively prime" just means two numbers have no common factors other than 1. So, numbers that are relatively prime with 18 are ones that don't share any factors with 18 besides 1. In this case, numbers like 1, 5, 7, 11, 13, 17, and so on are relatively prime with 18. It's like 18 is at a party, and these numbers are the cool kids who don't have any drama with it.
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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