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What is the Least Common Multiple of 64960 and 64965?

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 64960 and 64965 is 844025280.

LCM(64960,64965) = 844025280

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Least Common Multiple of 64960 and 64965 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64960 and 64965, than apply into the LCM equation.

GCF(64960,64965) = 5
LCM(64960,64965) = ( 64960 × 64965) / 5
LCM(64960,64965) = 4220126400 / 5
LCM(64960,64965) = 844025280

Least Common Multiple (LCM) of 64960 and 64965 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64960 and 64965. First we will calculate the prime factors of 64960 and 64965.

Prime Factorization of 64960

Prime factors of 64960 are 2, 5, 7, 29. Prime factorization of 64960 in exponential form is:

64960 = 26 × 51 × 71 × 291

Prime Factorization of 64965

Prime factors of 64965 are 3, 5, 61, 71. Prime factorization of 64965 in exponential form is:

64965 = 31 × 51 × 611 × 711

Now multiplying the highest exponent prime factors to calculate the LCM of 64960 and 64965.

LCM(64960,64965) = 26 × 51 × 71 × 291 × 31 × 611 × 711
LCM(64960,64965) = 844025280