Browse · MATH Print → jmc number theory junior Problem To prepare for her half-marathon, Mary ran a total of 28479 miles. How many miles (in base ten) did Mary run? Solution — click to reveal 28479=2⋅93+8⋅92+4⋅91+7⋅90=1458+648+36+7=2149 miles. Final answer 2149 ← Previous problem Next problem →