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What is the Least Common Multiple of 704 and 708?

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 704 and 708 is 124608.

LCM(704,708) = 124608

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Least Common Multiple of 704 and 708 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 704 and 708, than apply into the LCM equation.

GCF(704,708) = 4
LCM(704,708) = ( 704 × 708) / 4
LCM(704,708) = 498432 / 4
LCM(704,708) = 124608

Least Common Multiple (LCM) of 704 and 708 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 704 and 708. First we will calculate the prime factors of 704 and 708.

Prime Factorization of 704

Prime factors of 704 are 2, 11. Prime factorization of 704 in exponential form is:

704 = 26 × 111

Prime Factorization of 708

Prime factors of 708 are 2, 3, 59. Prime factorization of 708 in exponential form is:

708 = 22 × 31 × 591

Now multiplying the highest exponent prime factors to calculate the LCM of 704 and 708.

LCM(704,708) = 26 × 111 × 31 × 591
LCM(704,708) = 124608