The "superprime" of a number is defined as the sum

BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

This topic has expert replies

Post new topic Post Reply

Previous Topic Next Topic

AAPL: Moderator; Posts: 2599; Joined: Sun Oct 29, 2017 2:08 pm; Followed by:2 members

The "superprime" of a number is defined as the sum

by AAPL » Wed Jul 24, 2019 5:43 am

Timer

00:00

Your Answer

Global Stats

Princeton Review

The "superprime" of a number is defined as the sum of its distinct prime factors. What is the "superprime" of 40?

A. 7
B. 8
C. 11
D. 13
E. 22

OA A

Quote

Source: Beat The GMAT — Problem Solving | Wed Jul 24, 2019 5:43 am

GMAT/MBA Expert

Brent@GMATPrepNow: GMAT Instructor; Posts: 16207; Joined: Mon Dec 08, 2008 6:26 pm; Location: Vancouver, BC; Thanked: 5254 times; Followed by:1268 members; GMAT Score:770

by Brent@GMATPrepNow » Wed Jul 24, 2019 6:19 am

AAPL wrote:Princeton Review

The "superprime" of a number is defined as the sum of its distinct prime factors. What is the "superprime" of 40?

A. 7
B. 8
C. 11
D. 13
E. 22

OA A

40 = (2)(2)(2)(5)
So, the sum of the DISTINCT prime factors = 2 + 5 = 7

Answer: A

Cheers,
Brent

Brent Hanneson - Creator of GMATPrepNow.com

Quote

GMAT/MBA Expert

Scott@TargetTestPrep: GMAT Instructor; Posts: 8086; Joined: Sat Apr 25, 2015 10:56 am; Location: Los Angeles, CA; Thanked: 43 times; Followed by:29 members

by Scott@TargetTestPrep » Wed Jul 31, 2019 4:24 pm

AAPL wrote:Princeton Review

The "superprime" of a number is defined as the sum of its distinct prime factors. What is the "superprime" of 40?

A. 7
B. 8
C. 11
D. 13
E. 22

OA A

Since the distinct prime factors of 40 are 5 and 2, then the "superprime" of 40 is 5 + 2 = 7.

Answer: A

Scott Woodbury-Stewart
Founder and CEO
[email protected]