Q: What is the LCM and HCF of 72 and 42 show calculations?

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HCF(30, 36, 42) = 6 LCM(30, 36, 42) = 1260

The greatest common factor of the numbers '420' and '2646' is '42'.

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

The LCM is 42

The GCF is 70.

Related questions

hcf = 42, lcm = 84.

The LCM is: 126

LCM = product/HCF; HCF is 6 so LCM = 12 x 42 = 504

6

84 and 14, respectively.

HCF(30, 36, 42) = 6 LCM(30, 36, 42) = 1260

Whenever one of the numbers is a multiple of the other, the larger number is the LCM and the smaller number is the GCF. In this case, the difference between them is 42. The highest common multiple of any set of integers is infinite.

LCM of two numbers is their product divided by their HCF. First find HCF: 462 = 2 x 3 x 7 x 11; 630 = 2 x 3 x 3 x 5 x 7. The common factors are 2 x 3 x 7 ie HCF = 42 LCM is therefore 462 x 630 / 42 ie 11 x 630 = 6930

The least common multiple of 14 and 21 is 42.14, 28, 42, 56 ...21, 42, 63, 84, ...

The greatest common factor of the numbers '420' and '2646' is '42'.

The GCF is 42.

It is: 14