Question

i am a 6-digit number greater than 700,000.my hundred thousands digit is twice my ones digit,my thousands digit,and my hundreds digit.my remaining digits are the same-a prime number greater than 5

Answer 1

just start filling in the blanks. Start with

xxxxxx

greater than 700,000. The choices are
7xxxxx
8xxxxx
9xxxxx

my hundred thousands digit is twice my ones digit, my thousands digit,and my hundreds digit. So, the 1st digit must be even, leaving
8x44x4

my remaining digits are the same-a prime number greater than 5
874474