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What is the Least Common Multiple of 2 and 10?

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 2 and 10 is 10.

LCM(2,10) = 10

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Least Common Multiple of 2 and 10 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2 and 10, than apply into the LCM equation.

GCF(2,10) = 2
LCM(2,10) = ( 2 × 10) / 2
LCM(2,10) = 20 / 2
LCM(2,10) = 10

Least Common Multiple (LCM) of 2 and 10 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2 and 10. First we will calculate the prime factors of 2 and 10.

Prime Factorization of 2

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

2 = 21

Prime Factorization of 10

Prime factors of 10 are 2, 5. Prime factorization of 10 in exponential form is:

10 = 21 × 51

Now multiplying the highest exponent prime factors to calculate the LCM of 2 and 10.

LCM(2,10) = 21 × 51
LCM(2,10) = 10

Recent Comments
Amazing calculator! 2020-12-21 08:37:44

This is amazing! Super accurate and helped me a lot!!

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