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What is the Least Common Multiple of 20937 and 20945?

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 20937 and 20945 is 438525465.

LCM(20937,20945) = 438525465

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Least Common Multiple of 20937 and 20945 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20937 and 20945, than apply into the LCM equation.

GCF(20937,20945) = 1
LCM(20937,20945) = ( 20937 × 20945) / 1
LCM(20937,20945) = 438525465 / 1
LCM(20937,20945) = 438525465

Least Common Multiple (LCM) of 20937 and 20945 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20937 and 20945. First we will calculate the prime factors of 20937 and 20945.

Prime Factorization of 20937

Prime factors of 20937 are 3, 7, 997. Prime factorization of 20937 in exponential form is:

20937 = 31 × 71 × 9971

Prime Factorization of 20945

Prime factors of 20945 are 5, 59, 71. Prime factorization of 20945 in exponential form is:

20945 = 51 × 591 × 711

Now multiplying the highest exponent prime factors to calculate the LCM of 20937 and 20945.

LCM(20937,20945) = 31 × 71 × 9971 × 51 × 591 × 711
LCM(20937,20945) = 438525465