# Find the LCM 8.4%*10

8.4%⋅10
Multiply each number by 1000 to get rid of decimals.
840
The LCM is the smallest positive number that all of the numbers divide into evenly.
1. List the prime factors of each number.
2. Multiply each factor the greatest number of times it occurs in either number.
The prime factors for 840 are 2⋅2⋅2⋅3⋅5⋅7.
840 has factors of 2 and 420.
2⋅420
420 has factors of 2 and 210.
2⋅2⋅210
210 has factors of 2 and 105.
2⋅2⋅2⋅105
105 has factors of 3 and 35.
2⋅2⋅2⋅3⋅35
35 has factors of 5 and 7.
2⋅2⋅2⋅3⋅5⋅7
2⋅2⋅2⋅3⋅5⋅7
The LCM of 840 is 2⋅2⋅2⋅3⋅5⋅7=840.
Multiply 2 by 2.
4⋅2⋅3⋅5⋅7
Multiply 4 by 2.
8⋅3⋅5⋅7
Multiply 8 by 3.
24⋅5⋅7
Multiply 24 by 5.
120⋅7
Multiply 120 by 7.
840
840
Since we multiplied by 1000 to get rid of the decimals, divide the answer by 1000.
0.84
Find the LCM 8.4%*10