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What is the Least Common Multiple of 31929 and 31945?

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 31929 and 31945 is 1019971905.

LCM(31929,31945) = 1019971905

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Least Common Multiple of 31929 and 31945 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31929 and 31945, than apply into the LCM equation.

GCF(31929,31945) = 1
LCM(31929,31945) = ( 31929 × 31945) / 1
LCM(31929,31945) = 1019971905 / 1
LCM(31929,31945) = 1019971905

Least Common Multiple (LCM) of 31929 and 31945 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31929 and 31945. First we will calculate the prime factors of 31929 and 31945.

Prime Factorization of 31929

Prime factors of 31929 are 3, 29, 367. Prime factorization of 31929 in exponential form is:

31929 = 31 × 291 × 3671

Prime Factorization of 31945

Prime factors of 31945 are 5, 6389. Prime factorization of 31945 in exponential form is:

31945 = 51 × 63891

Now multiplying the highest exponent prime factors to calculate the LCM of 31929 and 31945.

LCM(31929,31945) = 31 × 291 × 3671 × 51 × 63891
LCM(31929,31945) = 1019971905