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What is the Least Common Multiple of 68728 and 68748?

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 68728 and 68748 is 1181228136.

LCM(68728,68748) = 1181228136

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Least Common Multiple of 68728 and 68748 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68728 and 68748, than apply into the LCM equation.

GCF(68728,68748) = 4
LCM(68728,68748) = ( 68728 × 68748) / 4
LCM(68728,68748) = 4724912544 / 4
LCM(68728,68748) = 1181228136

Least Common Multiple (LCM) of 68728 and 68748 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68728 and 68748. First we will calculate the prime factors of 68728 and 68748.

Prime Factorization of 68728

Prime factors of 68728 are 2, 11, 71. Prime factorization of 68728 in exponential form is:

68728 = 23 × 112 × 711

Prime Factorization of 68748

Prime factors of 68748 are 2, 3, 17, 337. Prime factorization of 68748 in exponential form is:

68748 = 22 × 31 × 171 × 3371

Now multiplying the highest exponent prime factors to calculate the LCM of 68728 and 68748.

LCM(68728,68748) = 23 × 112 × 711 × 31 × 171 × 3371
LCM(68728,68748) = 1181228136