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What is the Least Common Multiple of 882 and 890?

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 882 and 890 is 392490.

LCM(882,890) = 392490

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Least Common Multiple of 882 and 890 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 882 and 890, than apply into the LCM equation.

GCF(882,890) = 2
LCM(882,890) = ( 882 × 890) / 2
LCM(882,890) = 784980 / 2
LCM(882,890) = 392490

Least Common Multiple (LCM) of 882 and 890 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 882 and 890. First we will calculate the prime factors of 882 and 890.

Prime Factorization of 882

Prime factors of 882 are 2, 3, 7. Prime factorization of 882 in exponential form is:

882 = 21 × 32 × 72

Prime Factorization of 890

Prime factors of 890 are 2, 5, 89. Prime factorization of 890 in exponential form is:

890 = 21 × 51 × 891

Now multiplying the highest exponent prime factors to calculate the LCM of 882 and 890.

LCM(882,890) = 21 × 32 × 72 × 51 × 891
LCM(882,890) = 392490