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What is the Least Common Multiple of 946 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 946 and 955 is 903430.

LCM(946,955) = 903430

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Least Common Multiple of 946 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 946 and 955, than apply into the LCM equation.

GCF(946,955) = 1
LCM(946,955) = ( 946 × 955) / 1
LCM(946,955) = 903430 / 1
LCM(946,955) = 903430

Least Common Multiple (LCM) of 946 and 955 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 946 and 955. First we will calculate the prime factors of 946 and 955.

Prime Factorization of 946

Prime factors of 946 are 2, 11, 43. Prime factorization of 946 in exponential form is:

946 = 21 × 111 × 431

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 946 and 955.

LCM(946,955) = 21 × 111 × 431 × 51 × 1911
LCM(946,955) = 903430