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What is the Least Common Multiple of 31787 and 31802?

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 31787 and 31802 is 1010890174.

LCM(31787,31802) = 1010890174

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Least Common Multiple of 31787 and 31802 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31787 and 31802, than apply into the LCM equation.

GCF(31787,31802) = 1
LCM(31787,31802) = ( 31787 × 31802) / 1
LCM(31787,31802) = 1010890174 / 1
LCM(31787,31802) = 1010890174

Least Common Multiple (LCM) of 31787 and 31802 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31787 and 31802. First we will calculate the prime factors of 31787 and 31802.

Prime Factorization of 31787

Prime factors of 31787 are 7, 19, 239. Prime factorization of 31787 in exponential form is:

31787 = 71 × 191 × 2391

Prime Factorization of 31802

Prime factors of 31802 are 2, 15901. Prime factorization of 31802 in exponential form is:

31802 = 21 × 159011

Now multiplying the highest exponent prime factors to calculate the LCM of 31787 and 31802.

LCM(31787,31802) = 71 × 191 × 2391 × 21 × 159011
LCM(31787,31802) = 1010890174