What is the Least Common Multiple of 416 and 434?
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 416 and 434 is 90272.
LCM(416,434) = 90272
Least Common Multiple of 416 and 434 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 416 and 434, than apply into the LCM equation.
GCF(416,434) = 2
LCM(416,434) = ( 416 × 434) / 2
LCM(416,434) = 180544 / 2
LCM(416,434) = 90272
Least Common Multiple (LCM) of 416 and 434 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 416 and 434. First we will calculate the prime factors of 416 and 434.
Prime Factorization of 416
Prime factors of 416 are 2, 13. Prime factorization of 416 in exponential form is:
416 = 25 × 131
Prime Factorization of 434
Prime factors of 434 are 2, 7, 31. Prime factorization of 434 in exponential form is:
434 = 21 × 71 × 311
Now multiplying the highest exponent prime factors to calculate the LCM of 416 and 434.
LCM(416,434) = 25 × 131 × 71 × 311
LCM(416,434) = 90272
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