They are 8 and 2520 respectively
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Prime factors of 56 are 23 x 7Prime factors of 78 are 2 x 3 x 13The LCM is the product of all the primes to their greatest power,so the LCM of 56 and 78 is 23 x 3 x 7 x 13 = 8 x 273 = 2,184
lcm(9, 12) = 36; hcf(9, 12) = 3.
For the values 56 and 32 the LCM is: 224
The LCM is 392.
The LCM is 360.