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What is the Least Common Multiple of 31162 and 31170?

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 31162 and 31170 is 485659770.

LCM(31162,31170) = 485659770

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Least Common Multiple of 31162 and 31170 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31162 and 31170, than apply into the LCM equation.

GCF(31162,31170) = 2
LCM(31162,31170) = ( 31162 × 31170) / 2
LCM(31162,31170) = 971319540 / 2
LCM(31162,31170) = 485659770

Least Common Multiple (LCM) of 31162 and 31170 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31162 and 31170. First we will calculate the prime factors of 31162 and 31170.

Prime Factorization of 31162

Prime factors of 31162 are 2, 15581. Prime factorization of 31162 in exponential form is:

31162 = 21 × 155811

Prime Factorization of 31170

Prime factors of 31170 are 2, 3, 5, 1039. Prime factorization of 31170 in exponential form is:

31170 = 21 × 31 × 51 × 10391

Now multiplying the highest exponent prime factors to calculate the LCM of 31162 and 31170.

LCM(31162,31170) = 21 × 155811 × 31 × 51 × 10391
LCM(31162,31170) = 485659770