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What is the Least Common Multiple of 985 and 1002?

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 985 and 1002 is 986970.

LCM(985,1002) = 986970

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Least Common Multiple of 985 and 1002 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 985 and 1002, than apply into the LCM equation.

GCF(985,1002) = 1
LCM(985,1002) = ( 985 × 1002) / 1
LCM(985,1002) = 986970 / 1
LCM(985,1002) = 986970

Least Common Multiple (LCM) of 985 and 1002 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 985 and 1002. First we will calculate the prime factors of 985 and 1002.

Prime Factorization of 985

Prime factors of 985 are 5, 197. Prime factorization of 985 in exponential form is:

985 = 51 × 1971

Prime Factorization of 1002

Prime factors of 1002 are 2, 3, 167. Prime factorization of 1002 in exponential form is:

1002 = 21 × 31 × 1671

Now multiplying the highest exponent prime factors to calculate the LCM of 985 and 1002.

LCM(985,1002) = 51 × 1971 × 21 × 31 × 1671
LCM(985,1002) = 986970