question_answer

Find the H.C.F of 70, 105, 175.

Answer:

The prime factors of 70, 105 and 175 \[70=2\times 5\times 7\]                                                                                                               \[105=3\times 5\times 7\]                                                                                                                          \[175=5\times 5\times 7\] Common factors are 5, 7 Required HCF \[=5\times 7=35\]