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What is the Least Common Multiple of 21242 and 21259?

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 21242 and 21259 is 451583678.

LCM(21242,21259) = 451583678

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Least Common Multiple of 21242 and 21259 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21242 and 21259, than apply into the LCM equation.

GCF(21242,21259) = 1
LCM(21242,21259) = ( 21242 × 21259) / 1
LCM(21242,21259) = 451583678 / 1
LCM(21242,21259) = 451583678

Least Common Multiple (LCM) of 21242 and 21259 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21242 and 21259. First we will calculate the prime factors of 21242 and 21259.

Prime Factorization of 21242

Prime factors of 21242 are 2, 13, 19, 43. Prime factorization of 21242 in exponential form is:

21242 = 21 × 131 × 191 × 431

Prime Factorization of 21259

Prime factors of 21259 are 7, 3037. Prime factorization of 21259 in exponential form is:

21259 = 71 × 30371

Now multiplying the highest exponent prime factors to calculate the LCM of 21242 and 21259.

LCM(21242,21259) = 21 × 131 × 191 × 431 × 71 × 30371
LCM(21242,21259) = 451583678