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What is the Least Common Multiple of 53921 and 53938?

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 53921 and 53938 is 2908390898.

LCM(53921,53938) = 2908390898

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Least Common Multiple of 53921 and 53938 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 53921 and 53938, than apply into the LCM equation.

GCF(53921,53938) = 1
LCM(53921,53938) = ( 53921 × 53938) / 1
LCM(53921,53938) = 2908390898 / 1
LCM(53921,53938) = 2908390898

Least Common Multiple (LCM) of 53921 and 53938 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 53921 and 53938. First we will calculate the prime factors of 53921 and 53938.

Prime Factorization of 53921

Prime factors of 53921 are 7, 7703. Prime factorization of 53921 in exponential form is:

53921 = 71 × 77031

Prime Factorization of 53938

Prime factors of 53938 are 2, 149, 181. Prime factorization of 53938 in exponential form is:

53938 = 21 × 1491 × 1811

Now multiplying the highest exponent prime factors to calculate the LCM of 53921 and 53938.

LCM(53921,53938) = 71 × 77031 × 21 × 1491 × 1811
LCM(53921,53938) = 2908390898