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What is the Least Common Multiple of 40108 and 40120?

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 40108 and 40120 is 402283240.

LCM(40108,40120) = 402283240

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Least Common Multiple of 40108 and 40120 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40108 and 40120, than apply into the LCM equation.

GCF(40108,40120) = 4
LCM(40108,40120) = ( 40108 × 40120) / 4
LCM(40108,40120) = 1609132960 / 4
LCM(40108,40120) = 402283240

Least Common Multiple (LCM) of 40108 and 40120 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40108 and 40120. First we will calculate the prime factors of 40108 and 40120.

Prime Factorization of 40108

Prime factors of 40108 are 2, 37, 271. Prime factorization of 40108 in exponential form is:

40108 = 22 × 371 × 2711

Prime Factorization of 40120

Prime factors of 40120 are 2, 5, 17, 59. Prime factorization of 40120 in exponential form is:

40120 = 23 × 51 × 171 × 591

Now multiplying the highest exponent prime factors to calculate the LCM of 40108 and 40120.

LCM(40108,40120) = 23 × 371 × 2711 × 51 × 171 × 591
LCM(40108,40120) = 402283240