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What is the Least Common Multiple of 75810 and 75817?

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 75810 and 75817 is 821098110.

LCM(75810,75817) = 821098110

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Least Common Multiple of 75810 and 75817 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75810 and 75817, than apply into the LCM equation.

GCF(75810,75817) = 7
LCM(75810,75817) = ( 75810 × 75817) / 7
LCM(75810,75817) = 5747686770 / 7
LCM(75810,75817) = 821098110

Least Common Multiple (LCM) of 75810 and 75817 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75810 and 75817. First we will calculate the prime factors of 75810 and 75817.

Prime Factorization of 75810

Prime factors of 75810 are 2, 3, 5, 7, 19. Prime factorization of 75810 in exponential form is:

75810 = 21 × 31 × 51 × 71 × 192

Prime Factorization of 75817

Prime factors of 75817 are 7, 10831. Prime factorization of 75817 in exponential form is:

75817 = 71 × 108311

Now multiplying the highest exponent prime factors to calculate the LCM of 75810 and 75817.

LCM(75810,75817) = 21 × 31 × 51 × 71 × 192 × 108311
LCM(75810,75817) = 821098110