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What is the Least Common Multiple of 71898 and 71904?

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 71898 and 71904 is 861625632.

LCM(71898,71904) = 861625632

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Least Common Multiple of 71898 and 71904 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71898 and 71904, than apply into the LCM equation.

GCF(71898,71904) = 6
LCM(71898,71904) = ( 71898 × 71904) / 6
LCM(71898,71904) = 5169753792 / 6
LCM(71898,71904) = 861625632

Least Common Multiple (LCM) of 71898 and 71904 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71898 and 71904. First we will calculate the prime factors of 71898 and 71904.

Prime Factorization of 71898

Prime factors of 71898 are 2, 3, 23, 521. Prime factorization of 71898 in exponential form is:

71898 = 21 × 31 × 231 × 5211

Prime Factorization of 71904

Prime factors of 71904 are 2, 3, 7, 107. Prime factorization of 71904 in exponential form is:

71904 = 25 × 31 × 71 × 1071

Now multiplying the highest exponent prime factors to calculate the LCM of 71898 and 71904.

LCM(71898,71904) = 25 × 31 × 231 × 5211 × 71 × 1071
LCM(71898,71904) = 861625632