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What is the Least Common Multiple of 70656 and 70675?

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 70656 and 70675 is 4993612800.

LCM(70656,70675) = 4993612800

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Least Common Multiple of 70656 and 70675 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70656 and 70675, than apply into the LCM equation.

GCF(70656,70675) = 1
LCM(70656,70675) = ( 70656 × 70675) / 1
LCM(70656,70675) = 4993612800 / 1
LCM(70656,70675) = 4993612800

Least Common Multiple (LCM) of 70656 and 70675 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70656 and 70675. First we will calculate the prime factors of 70656 and 70675.

Prime Factorization of 70656

Prime factors of 70656 are 2, 3, 23. Prime factorization of 70656 in exponential form is:

70656 = 210 × 31 × 231

Prime Factorization of 70675

Prime factors of 70675 are 5, 11, 257. Prime factorization of 70675 in exponential form is:

70675 = 52 × 111 × 2571

Now multiplying the highest exponent prime factors to calculate the LCM of 70656 and 70675.

LCM(70656,70675) = 210 × 31 × 231 × 52 × 111 × 2571
LCM(70656,70675) = 4993612800