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What is the Least Common Multiple of 74076 and 74090?

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 74076 and 74090 is 2744145420.

LCM(74076,74090) = 2744145420

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Least Common Multiple of 74076 and 74090 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74076 and 74090, than apply into the LCM equation.

GCF(74076,74090) = 2
LCM(74076,74090) = ( 74076 × 74090) / 2
LCM(74076,74090) = 5488290840 / 2
LCM(74076,74090) = 2744145420

Least Common Multiple (LCM) of 74076 and 74090 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74076 and 74090. First we will calculate the prime factors of 74076 and 74090.

Prime Factorization of 74076

Prime factors of 74076 are 2, 3, 6173. Prime factorization of 74076 in exponential form is:

74076 = 22 × 31 × 61731

Prime Factorization of 74090

Prime factors of 74090 are 2, 5, 31, 239. Prime factorization of 74090 in exponential form is:

74090 = 21 × 51 × 311 × 2391

Now multiplying the highest exponent prime factors to calculate the LCM of 74076 and 74090.

LCM(74076,74090) = 22 × 31 × 61731 × 51 × 311 × 2391
LCM(74076,74090) = 2744145420