What is the Least Common Multiple of 91392 and 91409?
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 91392 and 91409 is 491414784.
LCM(91392,91409) = 491414784
Least Common Multiple of 91392 and 91409 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91392 and 91409, than apply into the LCM equation.
GCF(91392,91409) = 17
LCM(91392,91409) = ( 91392 × 91409) / 17
LCM(91392,91409) = 8354051328 / 17
LCM(91392,91409) = 491414784
Least Common Multiple (LCM) of 91392 and 91409 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 91392 and 91409. First we will calculate the prime factors of 91392 and 91409.
Prime Factorization of 91392
Prime factors of 91392 are 2, 3, 7, 17. Prime factorization of 91392 in exponential form is:
91392 = 28 × 31 × 71 × 171
Prime Factorization of 91409
Prime factors of 91409 are 17, 19, 283. Prime factorization of 91409 in exponential form is:
91409 = 171 × 191 × 2831
Now multiplying the highest exponent prime factors to calculate the LCM of 91392 and 91409.
LCM(91392,91409) = 28 × 31 × 71 × 171 × 191 × 2831
LCM(91392,91409) = 491414784
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