What is the Least Common Multiple of 340 and 358?
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 340 and 358 is 60860.
LCM(340,358) = 60860
Least Common Multiple of 340 and 358 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 340 and 358, than apply into the LCM equation.
GCF(340,358) = 2
LCM(340,358) = ( 340 × 358) / 2
LCM(340,358) = 121720 / 2
LCM(340,358) = 60860
Least Common Multiple (LCM) of 340 and 358 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 340 and 358. First we will calculate the prime factors of 340 and 358.
Prime Factorization of 340
Prime factors of 340 are 2, 5, 17. Prime factorization of 340 in exponential form is:
340 = 22 × 51 × 171
Prime Factorization of 358
Prime factors of 358 are 2, 179. Prime factorization of 358 in exponential form is:
358 = 21 × 1791
Now multiplying the highest exponent prime factors to calculate the LCM of 340 and 358.
LCM(340,358) = 22 × 51 × 171 × 1791
LCM(340,358) = 60860
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