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What is the Least Common Multiple of 19748 and 19761?

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 19748 and 19761 is 390240228.

LCM(19748,19761) = 390240228

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Least Common Multiple of 19748 and 19761 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19748 and 19761, than apply into the LCM equation.

GCF(19748,19761) = 1
LCM(19748,19761) = ( 19748 × 19761) / 1
LCM(19748,19761) = 390240228 / 1
LCM(19748,19761) = 390240228

Least Common Multiple (LCM) of 19748 and 19761 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19748 and 19761. First we will calculate the prime factors of 19748 and 19761.

Prime Factorization of 19748

Prime factors of 19748 are 2, 4937. Prime factorization of 19748 in exponential form is:

19748 = 22 × 49371

Prime Factorization of 19761

Prime factors of 19761 are 3, 7, 941. Prime factorization of 19761 in exponential form is:

19761 = 31 × 71 × 9411

Now multiplying the highest exponent prime factors to calculate the LCM of 19748 and 19761.

LCM(19748,19761) = 22 × 49371 × 31 × 71 × 9411
LCM(19748,19761) = 390240228