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What is the Least Common Multiple of 67515 and 67535?

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 67515 and 67535 is 911925105.

LCM(67515,67535) = 911925105

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Least Common Multiple of 67515 and 67535 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67515 and 67535, than apply into the LCM equation.

GCF(67515,67535) = 5
LCM(67515,67535) = ( 67515 × 67535) / 5
LCM(67515,67535) = 4559625525 / 5
LCM(67515,67535) = 911925105

Least Common Multiple (LCM) of 67515 and 67535 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67515 and 67535. First we will calculate the prime factors of 67515 and 67535.

Prime Factorization of 67515

Prime factors of 67515 are 3, 5, 7, 643. Prime factorization of 67515 in exponential form is:

67515 = 31 × 51 × 71 × 6431

Prime Factorization of 67535

Prime factors of 67535 are 5, 13, 1039. Prime factorization of 67535 in exponential form is:

67535 = 51 × 131 × 10391

Now multiplying the highest exponent prime factors to calculate the LCM of 67515 and 67535.

LCM(67515,67535) = 31 × 51 × 71 × 6431 × 131 × 10391
LCM(67515,67535) = 911925105