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Since LCM(A,B) = (A*B)/(GCF(A,B)), then GCF(A,B) = (A*B)/LCM(A,B).

If the LCM(A,B) = A*B, then GCF(A,B) = (A*B)/LCM(A,B) = (A*B)/(A*B) = 1.

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Westford, MA

Since LCM(A,B) = (A*B)/(GCF(A,B)), then GCF(A,B) = (A*B)/LCM(A,B).

If the LCM(A,B) = A*B, then GCF(A,B) = (A*B)/LCM(A,B) = (A*B)/(A*B) = 1.

Woodland Hills, CA

2 numbers don't have any common factors.

LCM (A, B) = AB/ Gcf

Example : A = 24 = 2^{3} * 3

B= 36 = 2^{2} * 3^{2}

GCF = 2^{2} * 3 = 12 / product of common factors with lowest exponent.

LCM = 2^{3} * 3^{2} = 8(9) = 72 / Equals product of common factors with highest exponent .

LCM = (36) (24) = 72

12

This means that to find the lowest number which 2 numbers can be divided into that, the greatest

common factor is multiplied only once

Like the above example:

24 = 2^{3 }* 3

36 = 2^{2} * 3^{2 }

between 8 and 4 , 8 =2^{3 }is divisible both to 8 and 4

Between 3 and 9, 9 = 3^{2} is divisible to both 9 and 3

Their product 8 * 9 = 72 is divisible to both 24, 36.

Which is

(24) (36) = 72

12 (GCF)

If 2 numbers like 22, 45

22 = 2 *11

45 = 3^{2} * 5

Don't have any common factor, therefore , LCM = 22* 45 = 990

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