What is the Least Common Multiple of 340 and 347?
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 347 is 117980.
LCM(340,347) = 117980
Least Common Multiple of 340 and 347 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 347, than apply into the LCM equation.
GCF(340,347) = 1
LCM(340,347) = ( 340 × 347) / 1
LCM(340,347) = 117980 / 1
LCM(340,347) = 117980
Least Common Multiple (LCM) of 340 and 347 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 340 and 347. First we will calculate the prime factors of 340 and 347.
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 347
Prime factors of 347 are 347. Prime factorization of 347 in exponential form is:
347 = 3471
Now multiplying the highest exponent prime factors to calculate the LCM of 340 and 347.
LCM(340,347) = 22 × 51 × 171 × 3471
LCM(340,347) = 117980
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