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What is the Least Common Multiple of 30688 and 30705?

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 30688 and 30705 is 942275040.

LCM(30688,30705) = 942275040

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Least Common Multiple of 30688 and 30705 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30688 and 30705, than apply into the LCM equation.

GCF(30688,30705) = 1
LCM(30688,30705) = ( 30688 × 30705) / 1
LCM(30688,30705) = 942275040 / 1
LCM(30688,30705) = 942275040

Least Common Multiple (LCM) of 30688 and 30705 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30688 and 30705. First we will calculate the prime factors of 30688 and 30705.

Prime Factorization of 30688

Prime factors of 30688 are 2, 7, 137. Prime factorization of 30688 in exponential form is:

30688 = 25 × 71 × 1371

Prime Factorization of 30705

Prime factors of 30705 are 3, 5, 23, 89. Prime factorization of 30705 in exponential form is:

30705 = 31 × 51 × 231 × 891

Now multiplying the highest exponent prime factors to calculate the LCM of 30688 and 30705.

LCM(30688,30705) = 25 × 71 × 1371 × 31 × 51 × 231 × 891
LCM(30688,30705) = 942275040