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What is the Least Common Multiple of 28922 and 28938?

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 28922 and 28938 is 418472418.

LCM(28922,28938) = 418472418

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Least Common Multiple of 28922 and 28938 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28922 and 28938, than apply into the LCM equation.

GCF(28922,28938) = 2
LCM(28922,28938) = ( 28922 × 28938) / 2
LCM(28922,28938) = 836944836 / 2
LCM(28922,28938) = 418472418

Least Common Multiple (LCM) of 28922 and 28938 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28922 and 28938. First we will calculate the prime factors of 28922 and 28938.

Prime Factorization of 28922

Prime factors of 28922 are 2, 14461. Prime factorization of 28922 in exponential form is:

28922 = 21 × 144611

Prime Factorization of 28938

Prime factors of 28938 are 2, 3, 7, 13, 53. Prime factorization of 28938 in exponential form is:

28938 = 21 × 31 × 71 × 131 × 531

Now multiplying the highest exponent prime factors to calculate the LCM of 28922 and 28938.

LCM(28922,28938) = 21 × 144611 × 31 × 71 × 131 × 531
LCM(28922,28938) = 418472418