I think the answer is 402,937.92
Answer: The greatest common factor, or GCF, is the greatest factor that divides two numbers. To find the GCF of two numbers: List the prime factors of each number. Multiply those factors both numbers have in common.
Step-by-step explanation:
Well 42 divided by 2 is 21. than to double check you can do 21 plus 21 equals 42.
The correct answer Is D. Purple , Green , Yellow
Hope I helped! ( Smiles )