NAME

ADDRESS

TOWN

POSTCODE

PHONE NUMBER

The first correct entry drawn will receive a copy of Chambers Crossword Dictionary; two runners-up will receive a copy of an anthology of puzzles from the Chambers range. Write your name and contact details in the space provided and send to: Listener Crossword No 4010, 63 Green Lane, St Albans, Hertfordshire AL3 6HE, to arrive by December 11.

All entries are distinct five-digit integers whose factors are restricted to the first 22 prime numbers, 2 to 79, such that there are no repeated factors in any entry. No entry starts with a zero. Circular entries (labelled A to Z) are read clockwise, and radial entries (labelled 1 to 40) are read from the rim to the centre. When a circular entry intersects a radial entry, the clue gives their highest common factor as a product of primes, which are represented by different letters of the alphabet. If the two entries are co-prime (that is they have no factor in common), the clue is omitted.

A3 k
A6 k
B7 k
B8 m
B9 k
D17 f
D18 f
D19 a
D20 f
E23 af
E25 ct
E26 aft
F27 bt
F28 lt
F29 t
F30 bt
F31 tw
G32 ns
G33 a
G34 l
G35 l
H1 n
H39 b
H40 a
I1 fnu
I2 lnu
I38 hl
I40 hl
J4 f
J5 f
J7 p
K8 fl
K9 t
K10 t
K11 lt
K12 lt
L13 af
L14 a
L16 f
L17 fnw
M19 a
M22 h
N23 alm
N26 a
O28 gt
O29 ft
O30 ft
O31 gt
O32 t
P33 e
P34 e
P37 eu
Q1 w
Q3 k
Q6 k
Q7 k
Q8 r
Q39 rw
R9 ak
R10 w
R12 a
R13 a
R14 a
R15 v
R17 kw
R18 k
S19 n
S20 n
S22 d
S25 d
S26 r
S27 e
T29 fnt
T30 fnt
T31 knt
T32 nt
T34 f
T36 f
T37 ftu
T38 t
U1 fu
U2 u
U3 b
U4 f
U35 b
U36 bf
U37 fu
U39 b
V5 b
V6 l
V8 l
V10 bw
V11 bdl
V12 l
W15 r
W16 r
W17 ku
W18 k
W19 ak
W21 u
W23 a
X25 c
X26 k
X29 n
X30 n
X31 kn
X32 ns
Y1 fn
Y2 ln
Y3 n
Y4 fn
Y5 af
Y6 l
Y8 flr
Y9 art
Y10 t
Y11 lt
Y12 alt
Y13 afr
Y14 a
Y15 r
Y16 flr
Y17 fnt
Y18 fnt
Y19 ant
Y20 flnt
Z21 w
Z22 l
Z23 al
Z25 t
Z26 art
Z27 t
Z28 lt
Z29 t
Z30 t
Z31 tw
Z32 t
Z33 ar
Z34 l
Z35 l
Z36 r
Z37 t
Z38 lrt
Z39 rtw
Z40 alt

More information about Chambers books can be found at www.chambers.co.uk
A dedicated site for Listener puzzle fans can be found at www.listenercrossword.com

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