perplexus.info :: Just Math : Unearthing Units Digit

Unearthing Units Digit (Posted on 2016-08-09)

Find the units digit of floor(N), where:

    10²⁰⁰⁰⁰
N = ---------
    10¹⁰⁰ + 3

*** For an extra challenge, solve this puzzle without using a computer program aided method.

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

The required units digit is 3.
For an explanation, refer to the solution submitted by Brian Smith in this location.

Comments: ( You must be logged in to post comments.)

	Subject	Author	Date
	Solution	Brian Smith	2017-05-05 23:23:10

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