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What is the Least Common Multiple of 42731 and 42750?

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 42731 and 42750 is 96144750.

LCM(42731,42750) = 96144750

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Least Common Multiple of 42731 and 42750 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42731 and 42750, than apply into the LCM equation.

GCF(42731,42750) = 19
LCM(42731,42750) = ( 42731 × 42750) / 19
LCM(42731,42750) = 1826750250 / 19
LCM(42731,42750) = 96144750

Least Common Multiple (LCM) of 42731 and 42750 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42731 and 42750. First we will calculate the prime factors of 42731 and 42750.

Prime Factorization of 42731

Prime factors of 42731 are 13, 19, 173. Prime factorization of 42731 in exponential form is:

42731 = 131 × 191 × 1731

Prime Factorization of 42750

Prime factors of 42750 are 2, 3, 5, 19. Prime factorization of 42750 in exponential form is:

42750 = 21 × 32 × 53 × 191

Now multiplying the highest exponent prime factors to calculate the LCM of 42731 and 42750.

LCM(42731,42750) = 131 × 191 × 1731 × 21 × 32 × 53
LCM(42731,42750) = 96144750