1 . If number a is 22×31×50andbis21×31×51then1cmofa,bis:

• A. 2 2 × 3 1 × 5 1
• B. 2 2 × 3 2 × 5 2
• C. 2 3 × 3 1 × 5 0
• D. 2 2 × 3 2 × 5 0

Answer: Option A

Explanation:

2 . 22×31×50

• A. $2^1\times 3^1\times 5^1$
• B. $2^1\times 3^2\times 5^2$
• C. $2^3\times 3^1\times 5^0$
• D. $2^2\times 3^2\times 5^0$

Answer: Option A

Explanation: