Question

what is lcm of 4 9 3 2 98

Answer 1

4 = 2 * 2
9 = 3 * 3 
3
2 
98 = 7 *7 * 2 * 2

LCM = 2 * 2 * 3 * 3  * 7 * 7 = 882

Answer 2

$4 = 2 \times 2 \\ 9 = 3 \times 3 \\ 3 = 3 \times 1 \\ 2 = 2 \times 1 \\98 = 7 \times 7 \times 2$
= 2 × 2 × 3 × 3 ×3×2 × 7×7×2

= 2 × 3 × 3 × 2 × 7 × 2

= 504