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What is the Least Common Multiple of 68250 and 68257?

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 68250 and 68257 is 665505750.

LCM(68250,68257) = 665505750

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Least Common Multiple of 68250 and 68257 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68250 and 68257, than apply into the LCM equation.

GCF(68250,68257) = 7
LCM(68250,68257) = ( 68250 × 68257) / 7
LCM(68250,68257) = 4658540250 / 7
LCM(68250,68257) = 665505750

Least Common Multiple (LCM) of 68250 and 68257 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68250 and 68257. First we will calculate the prime factors of 68250 and 68257.

Prime Factorization of 68250

Prime factors of 68250 are 2, 3, 5, 7, 13. Prime factorization of 68250 in exponential form is:

68250 = 21 × 31 × 53 × 71 × 131

Prime Factorization of 68257

Prime factors of 68257 are 7, 199. Prime factorization of 68257 in exponential form is:

68257 = 73 × 1991

Now multiplying the highest exponent prime factors to calculate the LCM of 68250 and 68257.

LCM(68250,68257) = 21 × 31 × 53 × 73 × 131 × 1991
LCM(68250,68257) = 665505750