Check the most appropriate answer.The largest common factor of 280 and 315 is 15The greatest common divisor of 210 and 110 is 551 is a prime numberNone of the above

Find the highest common factor of $$126, $$252, and $$315.

Check the most appropriate answer.The greatest common divisor of 210 and 110 is 1149 is a prime number37 is a prime numberNone of the above

Find the highest common factor of $$210 and $$400.

Write the prime factorization of 275. Use exponents when appropriate and order the factors from least to greatest (for example, 2235).

Find the highest common factor of 63 and 210.