The LCM is: 1,125
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225
225The LCM is 225.
225 = 3252 63 = 327 so the greatest common factor is 9
To find a common denominator for 25, 27, and 45, we need to determine the least common multiple (LCM) of these numbers. The prime factorization of 25 is 5^2, 27 is 3^3, and 45 is 3^2 * 5. The LCM is the product of the highest power of each prime factor that appears in any of the numbers, which in this case is 3^3 * 5^2 = 225. Therefore, 225 is the common denominator for 25, 27, and 45.
The GCF/HCF of 100 and 225 is 25.