What is the Least Common Multiple of 91729 and 91742?
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 91729 and 91742 is 8415401918.
LCM(91729,91742) = 8415401918
Least Common Multiple of 91729 and 91742 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91729 and 91742, than apply into the LCM equation.
GCF(91729,91742) = 1
LCM(91729,91742) = ( 91729 × 91742) / 1
LCM(91729,91742) = 8415401918 / 1
LCM(91729,91742) = 8415401918
Least Common Multiple (LCM) of 91729 and 91742 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 91729 and 91742. First we will calculate the prime factors of 91729 and 91742.
Prime Factorization of 91729
Prime factors of 91729 are 11, 31, 269. Prime factorization of 91729 in exponential form is:
91729 = 111 × 311 × 2691
Prime Factorization of 91742
Prime factors of 91742 are 2, 7, 6553. Prime factorization of 91742 in exponential form is:
91742 = 21 × 71 × 65531
Now multiplying the highest exponent prime factors to calculate the LCM of 91729 and 91742.
LCM(91729,91742) = 111 × 311 × 2691 × 21 × 71 × 65531
LCM(91729,91742) = 8415401918
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