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What is the Least Common Multiple of 10990 and 10999?

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 10990 and 10999 is 120879010.

LCM(10990,10999) = 120879010

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Least Common Multiple of 10990 and 10999 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 10990 and 10999, than apply into the LCM equation.

GCF(10990,10999) = 1
LCM(10990,10999) = ( 10990 × 10999) / 1
LCM(10990,10999) = 120879010 / 1
LCM(10990,10999) = 120879010

Least Common Multiple (LCM) of 10990 and 10999 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 10990 and 10999. First we will calculate the prime factors of 10990 and 10999.

Prime Factorization of 10990

Prime factors of 10990 are 2, 5, 7, 157. Prime factorization of 10990 in exponential form is:

10990 = 21 × 51 × 71 × 1571

Prime Factorization of 10999

Prime factors of 10999 are 17, 647. Prime factorization of 10999 in exponential form is:

10999 = 171 × 6471

Now multiplying the highest exponent prime factors to calculate the LCM of 10990 and 10999.

LCM(10990,10999) = 21 × 51 × 71 × 1571 × 171 × 6471
LCM(10990,10999) = 120879010