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What is the Least Common Multiple of 19932 and 19945?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 19932 and 19945 is 397543740.

LCM(19932,19945) = 397543740

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Least Common Multiple of 19932 and 19945 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19932 and 19945, than apply into the LCM equation.

GCF(19932,19945) = 1
LCM(19932,19945) = ( 19932 × 19945) / 1
LCM(19932,19945) = 397543740 / 1
LCM(19932,19945) = 397543740

Least Common Multiple (LCM) of 19932 and 19945 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19932 and 19945. First we will calculate the prime factors of 19932 and 19945.

Prime Factorization of 19932

Prime factors of 19932 are 2, 3, 11, 151. Prime factorization of 19932 in exponential form is:

19932 = 22 × 31 × 111 × 1511

Prime Factorization of 19945

Prime factors of 19945 are 5, 3989. Prime factorization of 19945 in exponential form is:

19945 = 51 × 39891

Now multiplying the highest exponent prime factors to calculate the LCM of 19932 and 19945.

LCM(19932,19945) = 22 × 31 × 111 × 1511 × 51 × 39891
LCM(19932,19945) = 397543740