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What is the Least Common Multiple of 78245 and 78250?

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 78245 and 78250 is 1224534250.

LCM(78245,78250) = 1224534250

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Least Common Multiple of 78245 and 78250 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78245 and 78250, than apply into the LCM equation.

GCF(78245,78250) = 5
LCM(78245,78250) = ( 78245 × 78250) / 5
LCM(78245,78250) = 6122671250 / 5
LCM(78245,78250) = 1224534250

Least Common Multiple (LCM) of 78245 and 78250 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78245 and 78250. First we will calculate the prime factors of 78245 and 78250.

Prime Factorization of 78245

Prime factors of 78245 are 5, 15649. Prime factorization of 78245 in exponential form is:

78245 = 51 × 156491

Prime Factorization of 78250

Prime factors of 78250 are 2, 5, 313. Prime factorization of 78250 in exponential form is:

78250 = 21 × 53 × 3131

Now multiplying the highest exponent prime factors to calculate the LCM of 78245 and 78250.

LCM(78245,78250) = 53 × 156491 × 21 × 3131
LCM(78245,78250) = 1224534250