What is the Least Common Multiple of 940 and 955?
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 940 and 955 is 179540.
LCM(940,955) = 179540
Least Common Multiple of 940 and 955 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 940 and 955, than apply into the LCM equation.
GCF(940,955) = 5
LCM(940,955) = ( 940 × 955) / 5
LCM(940,955) = 897700 / 5
LCM(940,955) = 179540
Least Common Multiple (LCM) of 940 and 955 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 940 and 955. First we will calculate the prime factors of 940 and 955.
Prime Factorization of 940
Prime factors of 940 are 2, 5, 47. Prime factorization of 940 in exponential form is:
940 = 22 × 51 × 471
Prime Factorization of 955
Prime factors of 955 are 5, 191. Prime factorization of 955 in exponential form is:
955 = 51 × 1911
Now multiplying the highest exponent prime factors to calculate the LCM of 940 and 955.
LCM(940,955) = 22 × 51 × 471 × 1911
LCM(940,955) = 179540
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