1,18
2,9
3,6
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All the factor pairs of 18 satisfy this request.
18 and all factors of 18. 18 and all factors of 18. 18 and all factors of 18. 18 and all factors of 18.
The factor pairs of 18 are: 1 x 18 2 x 9 3 x 6
21,1 and 7,3
To find all pairs of numbers with a least common multiple (LCM) of 18, we need to consider the prime factorization of 18, which is 2 x 3^2. Any pair of numbers whose prime factorization includes 2 and/or 3^2 will have an LCM of 18. So, the pairs could be (2, 18), (3, 18), (6, 18), (9, 18), and (18, 18). These pairs have an LCM of 18 because they include the prime factors of 18.