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What is the Least Common Multiple of 45721 and 45740?

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 45721 and 45740 is 2091278540.

LCM(45721,45740) = 2091278540

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Least Common Multiple of 45721 and 45740 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 45721 and 45740, than apply into the LCM equation.

GCF(45721,45740) = 1
LCM(45721,45740) = ( 45721 × 45740) / 1
LCM(45721,45740) = 2091278540 / 1
LCM(45721,45740) = 2091278540

Least Common Multiple (LCM) of 45721 and 45740 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 45721 and 45740. First we will calculate the prime factors of 45721 and 45740.

Prime Factorization of 45721

Prime factors of 45721 are 13, 3517. Prime factorization of 45721 in exponential form is:

45721 = 131 × 35171

Prime Factorization of 45740

Prime factors of 45740 are 2, 5, 2287. Prime factorization of 45740 in exponential form is:

45740 = 22 × 51 × 22871

Now multiplying the highest exponent prime factors to calculate the LCM of 45721 and 45740.

LCM(45721,45740) = 131 × 35171 × 22 × 51 × 22871
LCM(45721,45740) = 2091278540