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Finite Math Examples
250⋅1.5 , 375⋅250
Step 1
Multiply each number by 10 to get rid of decimals.
3750,937500
Step 2
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.
Step 3
Step 3.1
3750 has factors of 2 and 1875.
2⋅1875
Step 3.2
1875 has factors of 3 and 625.
2⋅3⋅625
Step 3.3
625 has factors of 5 and 125.
2⋅3⋅5⋅125
Step 3.4
125 has factors of 5 and 25.
2⋅3⋅5⋅5⋅25
Step 3.5
25 has factors of 5 and 5.
2⋅3⋅5⋅5⋅5⋅5
2⋅3⋅5⋅5⋅5⋅5
Step 4
Step 4.1
937500 has factors of 2 and 468750.
2⋅468750
Step 4.2
468750 has factors of 2 and 234375.
2⋅2⋅234375
Step 4.3
234375 has factors of 3 and 78125.
2⋅2⋅3⋅78125
Step 4.4
78125 has factors of 5 and 15625.
2⋅2⋅3⋅5⋅15625
Step 4.5
15625 has factors of 5 and 3125.
2⋅2⋅3⋅5⋅5⋅3125
Step 4.6
3125 has factors of 5 and 625.
2⋅2⋅3⋅5⋅5⋅5⋅625
Step 4.7
625 has factors of 5 and 125.
2⋅2⋅3⋅5⋅5⋅5⋅5⋅125
Step 4.8
125 has factors of 5 and 25.
2⋅2⋅3⋅5⋅5⋅5⋅5⋅5⋅25
Step 4.9
25 has factors of 5 and 5.
2⋅2⋅3⋅5⋅5⋅5⋅5⋅5⋅5⋅5
2⋅2⋅3⋅5⋅5⋅5⋅5⋅5⋅5⋅5
Step 5
Step 5.1
Multiply 2 by 2.
4⋅3⋅5⋅5⋅5⋅5⋅5⋅5⋅5
Step 5.2
Multiply 4 by 3.
12⋅5⋅5⋅5⋅5⋅5⋅5⋅5
Step 5.3
Multiply 12 by 5.
60⋅5⋅5⋅5⋅5⋅5⋅5
Step 5.4
Multiply 60 by 5.
300⋅5⋅5⋅5⋅5⋅5
Step 5.5
Multiply 300 by 5.
1500⋅5⋅5⋅5⋅5
Step 5.6
Multiply 1500 by 5.
7500⋅5⋅5⋅5
Step 5.7
Multiply 7500 by 5.
37500⋅5⋅5
Step 5.8
Multiply 37500 by 5.
187500⋅5
Step 5.9
Multiply 187500 by 5.
937500
937500
Step 6
Since we multiplied by 10 to get rid of the decimals, divide the answer by 10.
93750