QuantForcesquant interview practice

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15 / 689 problems

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Difficulty: 800 – 2200

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	#	Name	Tags	Difficulty	Solved by
✓	dn_s24_q028	Prime factors of integer 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	coding number-theory	1200	x0
✓	dn_s27_q033	2009 nine digit number missing digit 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser number-theory digital-root	1700	x0
✓	dn_s27_q036	Sum of digits of 2019 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser number-theory digital-root	1100	x0
✓	dn_s27_q037	Find 2019 consecutive positive integers that are not prime 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser number-theory factorial	1600	x0
✓	gb_ch02_q008	Trailing zeros Green Book · Ch 2 · Brain Teasers	brain-teaser number-theory factorials	900	x0
✓	gb_ch02_q031	Division by 9 Green Book · Ch 2 · Brain Teasers	brain-teaser modular-arithmetic number-theory	900	x0
✓	gb_ch02_q036	Irrational number Green Book · Ch 2 · Brain Teasers	brain-teaser proof-by-contradiction number-theory classic	900	x0
✓	gb_ch04_q011	100th digit Green Book · Ch 4 · Probability Theory	number-theory binomial-theorem approximation	1700	x0
✓	gb_ch04_q012	Cubic of integer Green Book · Ch 4 · Probability Theory	number-theory modular-arithmetic probability	1500	x0
✓	rb_ch01_q013	100 light bulbs and 100 stockbrokers Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	number-theory divisors puzzle	1500	x0
✓	rb_ch01_q014	100 light bulbs continued Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	number-theory divisors perfect-squares	1700	x0
✓	rb_ch01_q027	Smallest positive integer with remainder pattern Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	number-theory modular-arithmetic lcm	1400	x0
✓	rb_ch01_q049	p prime > 3 then p^2-1 divisible by 24 Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	number-theory proof	1400	x0
✓	rb_ch01_q054	Trailing zeros 100! Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	number-theory factorial trailing-zeros	1400	x0
✓	rb_ch01_q068	Two consecutive prime numbers mean prime Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	number-theory primes	1800	x0