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What is the Least Common Multiple of 42895 and 42900?

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 42895 and 42900 is 368039100.

LCM(42895,42900) = 368039100

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Least Common Multiple of 42895 and 42900 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42895 and 42900, than apply into the LCM equation.

GCF(42895,42900) = 5
LCM(42895,42900) = ( 42895 × 42900) / 5
LCM(42895,42900) = 1840195500 / 5
LCM(42895,42900) = 368039100

Least Common Multiple (LCM) of 42895 and 42900 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42895 and 42900. First we will calculate the prime factors of 42895 and 42900.

Prime Factorization of 42895

Prime factors of 42895 are 5, 23, 373. Prime factorization of 42895 in exponential form is:

42895 = 51 × 231 × 3731

Prime Factorization of 42900

Prime factors of 42900 are 2, 3, 5, 11, 13. Prime factorization of 42900 in exponential form is:

42900 = 22 × 31 × 52 × 111 × 131

Now multiplying the highest exponent prime factors to calculate the LCM of 42895 and 42900.

LCM(42895,42900) = 52 × 231 × 3731 × 22 × 31 × 111 × 131
LCM(42895,42900) = 368039100