Final answer:
The answer to the multiplication problem 21418421 x 13244 is 283,777,316,624, which can be calculated using a calculator due to the large size of the numbers. correct option is D.
Step-by-step explanation:
The question asks for the product of two large numbers, specifically 21418421 multiplied by 13244. To find the answer to this multiplication problem (21418421 x 13244), one would typically use a calculator due to the size of the numbers involved. However, by following the correct arithmetic procedures for multiplication, one could do this by hand or use mental strategies to simplify the process.
Since this is a simple calculation using a calculator, we can directly enter the numbers to get the product. When inputting 21418421 and 13244 into a calculator, the result would be 283,777,316,624.