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What is the Least Common Multiple of 31785 and 31801?

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 31785 and 31801 is 1010794785.

LCM(31785,31801) = 1010794785

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Least Common Multiple of 31785 and 31801 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31785 and 31801, than apply into the LCM equation.

GCF(31785,31801) = 1
LCM(31785,31801) = ( 31785 × 31801) / 1
LCM(31785,31801) = 1010794785 / 1
LCM(31785,31801) = 1010794785

Least Common Multiple (LCM) of 31785 and 31801 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31785 and 31801. First we will calculate the prime factors of 31785 and 31801.

Prime Factorization of 31785

Prime factors of 31785 are 3, 5, 13, 163. Prime factorization of 31785 in exponential form is:

31785 = 31 × 51 × 131 × 1631

Prime Factorization of 31801

Prime factors of 31801 are 7, 11, 59. Prime factorization of 31801 in exponential form is:

31801 = 72 × 111 × 591

Now multiplying the highest exponent prime factors to calculate the LCM of 31785 and 31801.

LCM(31785,31801) = 31 × 51 × 131 × 1631 × 72 × 111 × 591
LCM(31785,31801) = 1010794785