What is the Least Common Multiple of 99990 and 99995?
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 99990 and 99995 is 1999700010.
LCM(99990,99995) = 1999700010
Least Common Multiple of 99990 and 99995 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 99990 and 99995, than apply into the LCM equation.
GCF(99990,99995) = 5
LCM(99990,99995) = ( 99990 × 99995) / 5
LCM(99990,99995) = 9998500050 / 5
LCM(99990,99995) = 1999700010
Least Common Multiple (LCM) of 99990 and 99995 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 99990 and 99995. First we will calculate the prime factors of 99990 and 99995.
Prime Factorization of 99990
Prime factors of 99990 are 2, 3, 5, 11, 101. Prime factorization of 99990 in exponential form is:
99990 = 21 × 32 × 51 × 111 × 1011
Prime Factorization of 99995
Prime factors of 99995 are 5, 7, 2857. Prime factorization of 99995 in exponential form is:
99995 = 51 × 71 × 28571
Now multiplying the highest exponent prime factors to calculate the LCM of 99990 and 99995.
LCM(99990,99995) = 21 × 32 × 51 × 111 × 1011 × 71 × 28571
LCM(99990,99995) = 1999700010