What is the Least Common Multiple of 290 and 308?
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 290 and 308 is 44660.
LCM(290,308) = 44660
Least Common Multiple of 290 and 308 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 290 and 308, than apply into the LCM equation.
GCF(290,308) = 2
LCM(290,308) = ( 290 × 308) / 2
LCM(290,308) = 89320 / 2
LCM(290,308) = 44660
Least Common Multiple (LCM) of 290 and 308 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 290 and 308. First we will calculate the prime factors of 290 and 308.
Prime Factorization of 290
Prime factors of 290 are 2, 5, 29. Prime factorization of 290 in exponential form is:
290 = 21 × 51 × 291
Prime Factorization of 308
Prime factors of 308 are 2, 7, 11. Prime factorization of 308 in exponential form is:
308 = 22 × 71 × 111
Now multiplying the highest exponent prime factors to calculate the LCM of 290 and 308.
LCM(290,308) = 22 × 51 × 291 × 71 × 111
LCM(290,308) = 44660
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