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What is the Least Common Multiple of 40030 and 40045?

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 40030 and 40045 is 320600270.

LCM(40030,40045) = 320600270

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Least Common Multiple of 40030 and 40045 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40030 and 40045, than apply into the LCM equation.

GCF(40030,40045) = 5
LCM(40030,40045) = ( 40030 × 40045) / 5
LCM(40030,40045) = 1603001350 / 5
LCM(40030,40045) = 320600270

Least Common Multiple (LCM) of 40030 and 40045 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40030 and 40045. First we will calculate the prime factors of 40030 and 40045.

Prime Factorization of 40030

Prime factors of 40030 are 2, 5, 4003. Prime factorization of 40030 in exponential form is:

40030 = 21 × 51 × 40031

Prime Factorization of 40045

Prime factors of 40045 are 5, 8009. Prime factorization of 40045 in exponential form is:

40045 = 51 × 80091

Now multiplying the highest exponent prime factors to calculate the LCM of 40030 and 40045.

LCM(40030,40045) = 21 × 51 × 40031 × 80091
LCM(40030,40045) = 320600270