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What is the Least Common Multiple of 72072 and 72076?

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 72072 and 72076 is 1298665368.

LCM(72072,72076) = 1298665368

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Least Common Multiple of 72072 and 72076 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72072 and 72076, than apply into the LCM equation.

GCF(72072,72076) = 4
LCM(72072,72076) = ( 72072 × 72076) / 4
LCM(72072,72076) = 5194661472 / 4
LCM(72072,72076) = 1298665368

Least Common Multiple (LCM) of 72072 and 72076 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72072 and 72076. First we will calculate the prime factors of 72072 and 72076.

Prime Factorization of 72072

Prime factors of 72072 are 2, 3, 7, 11, 13. Prime factorization of 72072 in exponential form is:

72072 = 23 × 32 × 71 × 111 × 131

Prime Factorization of 72076

Prime factors of 72076 are 2, 37, 487. Prime factorization of 72076 in exponential form is:

72076 = 22 × 371 × 4871

Now multiplying the highest exponent prime factors to calculate the LCM of 72072 and 72076.

LCM(72072,72076) = 23 × 32 × 71 × 111 × 131 × 371 × 4871
LCM(72072,72076) = 1298665368