What is the Least Common Multiple of 404 and 418?
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 404 and 418 is 84436.
LCM(404,418) = 84436
Least Common Multiple of 404 and 418 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 404 and 418, than apply into the LCM equation.
GCF(404,418) = 2
LCM(404,418) = ( 404 × 418) / 2
LCM(404,418) = 168872 / 2
LCM(404,418) = 84436
Least Common Multiple (LCM) of 404 and 418 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 404 and 418. First we will calculate the prime factors of 404 and 418.
Prime Factorization of 404
Prime factors of 404 are 2, 101. Prime factorization of 404 in exponential form is:
404 = 22 × 1011
Prime Factorization of 418
Prime factors of 418 are 2, 11, 19. Prime factorization of 418 in exponential form is:
418 = 21 × 111 × 191
Now multiplying the highest exponent prime factors to calculate the LCM of 404 and 418.
LCM(404,418) = 22 × 1011 × 111 × 191
LCM(404,418) = 84436
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