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What is the Least Common Multiple of 17688 and 17692?

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 17688 and 17692 is 78234024.

LCM(17688,17692) = 78234024

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Least Common Multiple of 17688 and 17692 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17688 and 17692, than apply into the LCM equation.

GCF(17688,17692) = 4
LCM(17688,17692) = ( 17688 × 17692) / 4
LCM(17688,17692) = 312936096 / 4
LCM(17688,17692) = 78234024

Least Common Multiple (LCM) of 17688 and 17692 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17688 and 17692. First we will calculate the prime factors of 17688 and 17692.

Prime Factorization of 17688

Prime factors of 17688 are 2, 3, 11, 67. Prime factorization of 17688 in exponential form is:

17688 = 23 × 31 × 111 × 671

Prime Factorization of 17692

Prime factors of 17692 are 2, 4423. Prime factorization of 17692 in exponential form is:

17692 = 22 × 44231

Now multiplying the highest exponent prime factors to calculate the LCM of 17688 and 17692.

LCM(17688,17692) = 23 × 31 × 111 × 671 × 44231
LCM(17688,17692) = 78234024