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What is the Least Common Multiple of 31773 and 31790?

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 31773 and 31790 is 59415510.

LCM(31773,31790) = 59415510

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Least Common Multiple of 31773 and 31790 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31773 and 31790, than apply into the LCM equation.

GCF(31773,31790) = 17
LCM(31773,31790) = ( 31773 × 31790) / 17
LCM(31773,31790) = 1010063670 / 17
LCM(31773,31790) = 59415510

Least Common Multiple (LCM) of 31773 and 31790 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31773 and 31790. First we will calculate the prime factors of 31773 and 31790.

Prime Factorization of 31773

Prime factors of 31773 are 3, 7, 17, 89. Prime factorization of 31773 in exponential form is:

31773 = 31 × 71 × 171 × 891

Prime Factorization of 31790

Prime factors of 31790 are 2, 5, 11, 17. Prime factorization of 31790 in exponential form is:

31790 = 21 × 51 × 111 × 172

Now multiplying the highest exponent prime factors to calculate the LCM of 31773 and 31790.

LCM(31773,31790) = 31 × 71 × 172 × 891 × 21 × 51 × 111
LCM(31773,31790) = 59415510