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Least Common Multiple of 40 and 130

Least common multiple (LCM) of 40 and 130 is 520.

LCM(40,130) = 520

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.

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Least Common Multiple of 40 and 130 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40 and 130, than apply into the LCM equation.

GCF(40,130) = 10
LCM(40,130) = ( 40 × 130) / 10
LCM(40,130) = 5200 / 10
LCM(40,130) = 520

Least Common Multiple (LCM) of 40 and 130 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40 and 130. First we will calculate the prime factors of 40 and 130.

Prime Factorization of 40

Prime factors of 40 are 2, 5. Prime factorization of 40 in exponential form is:

40 = 23 × 51

Prime Factorization of 130

Prime factors of 130 are 2, 5, 13. Prime factorization of 130 in exponential form is:

130 = 21 × 51 × 131

Now multiplying the highest exponent prime factors to calculate the LCM of 40 and 130.

LCM(40,130) = 23 × 51 × 131
LCM(40,130) = 520

Recent Comments
Guest 2019-09-09 01:31:30

Find the lcm, continous division 30 40

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