What is the Least Common Multiple of 91854 and 91858?
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 91854 and 91858 is 4218762366.
LCM(91854,91858) = 4218762366
Least Common Multiple of 91854 and 91858 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91854 and 91858, than apply into the LCM equation.
GCF(91854,91858) = 2
LCM(91854,91858) = ( 91854 × 91858) / 2
LCM(91854,91858) = 8437524732 / 2
LCM(91854,91858) = 4218762366
Least Common Multiple (LCM) of 91854 and 91858 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 91854 and 91858. First we will calculate the prime factors of 91854 and 91858.
Prime Factorization of 91854
Prime factors of 91854 are 2, 3, 7. Prime factorization of 91854 in exponential form is:
91854 = 21 × 38 × 71
Prime Factorization of 91858
Prime factors of 91858 are 2, 13, 3533. Prime factorization of 91858 in exponential form is:
91858 = 21 × 131 × 35331
Now multiplying the highest exponent prime factors to calculate the LCM of 91854 and 91858.
LCM(91854,91858) = 21 × 38 × 71 × 131 × 35331
LCM(91854,91858) = 4218762366
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