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The LCM of 32 and 45 is 1440. 32 and 45 have no common factors. We call this relatively prime. When you have relatively prime numbers, their LCM is their product.Since 32 and 45 share no common factors, the LCM would be 32*45 = 1440.
180, 360, 540, 720, 900, 1080, 1260, 1440 . . .
Prime factors of 1080 are 23 33 5.
1080 factors to [2 2 2 3 3 3 5] 729 factors to [3 3 3 3 3 3] Common factors are [3 3 3] Answer is 3*3*3=27■
It isn't. 32 and 45 have no common prime factors, so the LCM is their product, 1440