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What is the Least Common Multiple of 989 and 994?

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 989 and 994 is 983066.

LCM(989,994) = 983066

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Least Common Multiple of 989 and 994 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 989 and 994, than apply into the LCM equation.

GCF(989,994) = 1
LCM(989,994) = ( 989 × 994) / 1
LCM(989,994) = 983066 / 1
LCM(989,994) = 983066

Least Common Multiple (LCM) of 989 and 994 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 989 and 994. First we will calculate the prime factors of 989 and 994.

Prime Factorization of 989

Prime factors of 989 are 23, 43. Prime factorization of 989 in exponential form is:

989 = 231 × 431

Prime Factorization of 994

Prime factors of 994 are 2, 7, 71. Prime factorization of 994 in exponential form is:

994 = 21 × 71 × 711

Now multiplying the highest exponent prime factors to calculate the LCM of 989 and 994.

LCM(989,994) = 231 × 431 × 21 × 71 × 711
LCM(989,994) = 983066