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What is the Least Common Multiple of 1936 and 1955?

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 1936 and 1955 is 3784880.

LCM(1936,1955) = 3784880

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Least Common Multiple of 1936 and 1955 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1936 and 1955, than apply into the LCM equation.

GCF(1936,1955) = 1
LCM(1936,1955) = ( 1936 × 1955) / 1
LCM(1936,1955) = 3784880 / 1
LCM(1936,1955) = 3784880

Least Common Multiple (LCM) of 1936 and 1955 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1936 and 1955. First we will calculate the prime factors of 1936 and 1955.

Prime Factorization of 1936

Prime factors of 1936 are 2, 11. Prime factorization of 1936 in exponential form is:

1936 = 24 × 112

Prime Factorization of 1955

Prime factors of 1955 are 5, 17, 23. Prime factorization of 1955 in exponential form is:

1955 = 51 × 171 × 231

Now multiplying the highest exponent prime factors to calculate the LCM of 1936 and 1955.

LCM(1936,1955) = 24 × 112 × 51 × 171 × 231
LCM(1936,1955) = 3784880