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What is the Least Common Multiple of 53720 and 53738?

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 53720 and 53738 is 1443402680.

LCM(53720,53738) = 1443402680

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Least Common Multiple of 53720 and 53738 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 53720 and 53738, than apply into the LCM equation.

GCF(53720,53738) = 2
LCM(53720,53738) = ( 53720 × 53738) / 2
LCM(53720,53738) = 2886805360 / 2
LCM(53720,53738) = 1443402680

Least Common Multiple (LCM) of 53720 and 53738 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 53720 and 53738. First we will calculate the prime factors of 53720 and 53738.

Prime Factorization of 53720

Prime factors of 53720 are 2, 5, 17, 79. Prime factorization of 53720 in exponential form is:

53720 = 23 × 51 × 171 × 791

Prime Factorization of 53738

Prime factors of 53738 are 2, 97, 277. Prime factorization of 53738 in exponential form is:

53738 = 21 × 971 × 2771

Now multiplying the highest exponent prime factors to calculate the LCM of 53720 and 53738.

LCM(53720,53738) = 23 × 51 × 171 × 791 × 971 × 2771
LCM(53720,53738) = 1443402680