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What is the Least Common Multiple of 68415 and 68435?

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 68415 and 68435 is 936396105.

LCM(68415,68435) = 936396105

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Least Common Multiple of 68415 and 68435 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68415 and 68435, than apply into the LCM equation.

GCF(68415,68435) = 5
LCM(68415,68435) = ( 68415 × 68435) / 5
LCM(68415,68435) = 4681980525 / 5
LCM(68415,68435) = 936396105

Least Common Multiple (LCM) of 68415 and 68435 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68415 and 68435. First we will calculate the prime factors of 68415 and 68435.

Prime Factorization of 68415

Prime factors of 68415 are 3, 5, 4561. Prime factorization of 68415 in exponential form is:

68415 = 31 × 51 × 45611

Prime Factorization of 68435

Prime factors of 68435 are 5, 13687. Prime factorization of 68435 in exponential form is:

68435 = 51 × 136871

Now multiplying the highest exponent prime factors to calculate the LCM of 68415 and 68435.

LCM(68415,68435) = 31 × 51 × 45611 × 136871
LCM(68415,68435) = 936396105