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What is the Least Common Multiple of 22821 and 22830?

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 22821 and 22830 is 173667810.

LCM(22821,22830) = 173667810

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Least Common Multiple of 22821 and 22830 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 22821 and 22830, than apply into the LCM equation.

GCF(22821,22830) = 3
LCM(22821,22830) = ( 22821 × 22830) / 3
LCM(22821,22830) = 521003430 / 3
LCM(22821,22830) = 173667810

Least Common Multiple (LCM) of 22821 and 22830 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 22821 and 22830. First we will calculate the prime factors of 22821 and 22830.

Prime Factorization of 22821

Prime factors of 22821 are 3, 7607. Prime factorization of 22821 in exponential form is:

22821 = 31 × 76071

Prime Factorization of 22830

Prime factors of 22830 are 2, 3, 5, 761. Prime factorization of 22830 in exponential form is:

22830 = 21 × 31 × 51 × 7611

Now multiplying the highest exponent prime factors to calculate the LCM of 22821 and 22830.

LCM(22821,22830) = 31 × 76071 × 21 × 51 × 7611
LCM(22821,22830) = 173667810