Algebra Examples

98

$98$

Step 1

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 2

The prime factors for

98

$98$ are

2 \cdot 7 \cdot 7

$2 \cdot 7 \cdot 7$ .

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Step 2.1

98

$98$ has factors of

2

$2$ and

49

$49$ .

2 \cdot 49

$2 \cdot 49$

Step 2.2

49

$49$ has factors of

7

$7$ and

7

$7$ .

2 \cdot 7 \cdot 7

$2 \cdot 7 \cdot 7$

Step 3

Multiply

$2 \cdot 7 \cdot 7$ .

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Step 3.1

Multiply

$2$ by

$7$ .

$14 \cdot 7$

Step 3.2

Multiply

$14$ by

$7$ .

$98$

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