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What is the Least Common Multiple of 40931 and 40940?

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 40931 and 40940 is 1675715140.

LCM(40931,40940) = 1675715140

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Least Common Multiple of 40931 and 40940 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40931 and 40940, than apply into the LCM equation.

GCF(40931,40940) = 1
LCM(40931,40940) = ( 40931 × 40940) / 1
LCM(40931,40940) = 1675715140 / 1
LCM(40931,40940) = 1675715140

Least Common Multiple (LCM) of 40931 and 40940 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40931 and 40940. First we will calculate the prime factors of 40931 and 40940.

Prime Factorization of 40931

Prime factors of 40931 are 11, 61. Prime factorization of 40931 in exponential form is:

40931 = 111 × 612

Prime Factorization of 40940

Prime factors of 40940 are 2, 5, 23, 89. Prime factorization of 40940 in exponential form is:

40940 = 22 × 51 × 231 × 891

Now multiplying the highest exponent prime factors to calculate the LCM of 40931 and 40940.

LCM(40931,40940) = 111 × 612 × 22 × 51 × 231 × 891
LCM(40931,40940) = 1675715140