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What is the Least Common Multiple of 39413 and 39420?

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 39413 and 39420 is 1553660460.

LCM(39413,39420) = 1553660460

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Least Common Multiple of 39413 and 39420 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39413 and 39420, than apply into the LCM equation.

GCF(39413,39420) = 1
LCM(39413,39420) = ( 39413 × 39420) / 1
LCM(39413,39420) = 1553660460 / 1
LCM(39413,39420) = 1553660460

Least Common Multiple (LCM) of 39413 and 39420 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39413 and 39420. First we will calculate the prime factors of 39413 and 39420.

Prime Factorization of 39413

Prime factors of 39413 are 11, 3583. Prime factorization of 39413 in exponential form is:

39413 = 111 × 35831

Prime Factorization of 39420

Prime factors of 39420 are 2, 3, 5, 73. Prime factorization of 39420 in exponential form is:

39420 = 22 × 33 × 51 × 731

Now multiplying the highest exponent prime factors to calculate the LCM of 39413 and 39420.

LCM(39413,39420) = 111 × 35831 × 22 × 33 × 51 × 731
LCM(39413,39420) = 1553660460