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What is the Least Common Multiple of 9102 and 9120?

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 9102 and 9120 is 13835040.

LCM(9102,9120) = 13835040

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Least Common Multiple of 9102 and 9120 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9102 and 9120, than apply into the LCM equation.

GCF(9102,9120) = 6
LCM(9102,9120) = ( 9102 × 9120) / 6
LCM(9102,9120) = 83010240 / 6
LCM(9102,9120) = 13835040

Least Common Multiple (LCM) of 9102 and 9120 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9102 and 9120. First we will calculate the prime factors of 9102 and 9120.

Prime Factorization of 9102

Prime factors of 9102 are 2, 3, 37, 41. Prime factorization of 9102 in exponential form is:

9102 = 21 × 31 × 371 × 411

Prime Factorization of 9120

Prime factors of 9120 are 2, 3, 5, 19. Prime factorization of 9120 in exponential form is:

9120 = 25 × 31 × 51 × 191

Now multiplying the highest exponent prime factors to calculate the LCM of 9102 and 9120.

LCM(9102,9120) = 25 × 31 × 371 × 411 × 51 × 191
LCM(9102,9120) = 13835040