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What is the Least Common Multiple of 90991 and 91002?

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 90991 and 91002 is 8280362982.

LCM(90991,91002) = 8280362982

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Least Common Multiple of 90991 and 91002 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90991 and 91002, than apply into the LCM equation.

GCF(90991,91002) = 1
LCM(90991,91002) = ( 90991 × 91002) / 1
LCM(90991,91002) = 8280362982 / 1
LCM(90991,91002) = 8280362982

Least Common Multiple (LCM) of 90991 and 91002 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90991 and 91002. First we will calculate the prime factors of 90991 and 91002.

Prime Factorization of 90991

Prime factors of 90991 are 19, 4789. Prime factorization of 90991 in exponential form is:

90991 = 191 × 47891

Prime Factorization of 91002

Prime factors of 91002 are 2, 3, 29, 523. Prime factorization of 91002 in exponential form is:

91002 = 21 × 31 × 291 × 5231

Now multiplying the highest exponent prime factors to calculate the LCM of 90991 and 91002.

LCM(90991,91002) = 191 × 47891 × 21 × 31 × 291 × 5231
LCM(90991,91002) = 8280362982