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What is the Least Common Multiple of 20977 and 20986?

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 20977 and 20986 is 440223322.

LCM(20977,20986) = 440223322

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Least Common Multiple of 20977 and 20986 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20977 and 20986, than apply into the LCM equation.

GCF(20977,20986) = 1
LCM(20977,20986) = ( 20977 × 20986) / 1
LCM(20977,20986) = 440223322 / 1
LCM(20977,20986) = 440223322

Least Common Multiple (LCM) of 20977 and 20986 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20977 and 20986. First we will calculate the prime factors of 20977 and 20986.

Prime Factorization of 20977

Prime factors of 20977 are 11, 1907. Prime factorization of 20977 in exponential form is:

20977 = 111 × 19071

Prime Factorization of 20986

Prime factors of 20986 are 2, 7, 1499. Prime factorization of 20986 in exponential form is:

20986 = 21 × 71 × 14991

Now multiplying the highest exponent prime factors to calculate the LCM of 20977 and 20986.

LCM(20977,20986) = 111 × 19071 × 21 × 71 × 14991
LCM(20977,20986) = 440223322