What is the Least Common Multiple of 42520 and 42536?

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 of 42520 and 42536 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42520 and 42536, than apply into the LCM equation.

GCF(42520,42536) = 8
LCM(42520,42536) = ( 42520 × 42536) / 8
LCM(42520,42536) = 1808630720 / 8
LCM(42520,42536) = 226078840

Least Common Multiple (LCM) of 42520 and 42536 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42520 and 42536. First we will calculate the prime factors of 42520 and 42536.

Prime Factorization of 42520

Prime Factorization of 42536

Now multiplying the highest exponent prime factors to calculate the LCM of 42520 and 42536.

LCM(42520,42536) = 2³ × 5¹ × 1063¹ × 13¹ × 409¹
LCM(42520,42536) = 226078840