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What is the Least Common Multiple of 31346 and 31360?

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 31346 and 31360 is 70215040.

LCM(31346,31360) = 70215040

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Least Common Multiple of 31346 and 31360 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31346 and 31360, than apply into the LCM equation.

GCF(31346,31360) = 14
LCM(31346,31360) = ( 31346 × 31360) / 14
LCM(31346,31360) = 983010560 / 14
LCM(31346,31360) = 70215040

Least Common Multiple (LCM) of 31346 and 31360 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31346 and 31360. First we will calculate the prime factors of 31346 and 31360.

Prime Factorization of 31346

Prime factors of 31346 are 2, 7, 2239. Prime factorization of 31346 in exponential form is:

31346 = 21 × 71 × 22391

Prime Factorization of 31360

Prime factors of 31360 are 2, 5, 7. Prime factorization of 31360 in exponential form is:

31360 = 27 × 51 × 72

Now multiplying the highest exponent prime factors to calculate the LCM of 31346 and 31360.

LCM(31346,31360) = 27 × 72 × 22391 × 51
LCM(31346,31360) = 70215040